Rama Govindarajan Professor, TIFR Centre for Interdisciplinary Sciences Tata Institute of Fundamental Research Narsingi, Hyderabad 500075, India e-mail: rama@tifrh.res.in url: http://www.tifrh.res.in/tcis/tcis-faculty/rama-govindarajan.html Research interests: Fluid dynamics -- flow instability, vortex dynamics, stratified and interfacial flows – on all scales from laboratory to ocean and atmosphere. Date of birth 26 Aug 1962 Nationality Indian Academic qualifications 1991 -1994: Ph.D in Aerospace Engineering, IISc Bangalore. (GPA 7.8/8.0) 1984 -1986: M.S. in Chemical Engineering, Drexel University, Philadelphia. (GPA 3.9/4.0) 1979 -1984: B.Tech. in Chemical Engineering, IIT Delhi. (GPA 9.4/10.0) Career -- positions held July 2012-present: Professor in the Tata Institute of Fundamental Research, Hyderabad. July 1998- June 2012: Faculty member (Professor since 2008) in the Engineering Mechanics Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Bangalore. On lien to the TIFR. 1994: Post-Doctoral Fellow, Dept. of Aeronautics, Caltech (Indo-US Fellowship). May 1988-June 1998: Scientist in the Computational and Theoretical Fluid Dynamics Division, National Aerospace Laboratories, Bangalore. (Fellow during 1988-1991) May 1987-May 1988: Project Engineer in the Aeronautical Development Agency, Bangalore. Jun 1986-Apr 1987: Scientific Officer in the Joint Advanced Technology Programme, Indian Institute of Science, Bangalore. Refereed Publications 2014 Instabilities in viscosity-stratified flows. Rama Govindarajan & Kirti Chandra Sahu, Annual Review of Fluid Mechanics, 46: 331-353. Nonlinear dynamical systems, their stability and chaos. Lecture notes from the FLOW-NORDITA Summer School on Advanced Instability Methods for Complex Flows, Stockholm, Sweden, 2013 Amol Marathe and Rama Govindarajan, Applied Mechanics Reviews, 66(2), 024802. A minimal model for flow control on an airfoil using a poro-elastic coating. Divya Venkataraman, Alessandro Bottaro and Rama Govindarajan. Journal of Fluids and Structures, 47, 150–164. Attracting fixed points for heavy particles in the vicinity of a vortex pair. Ravichandran Sivaramakrishnan, Prasad Perlekar and Rama Govindarajan. Physics of Fluids, 26, 013303. Why a falling drop does not in general behave like a rising bubble, Manoj Kumar Tripathi, Kirti Chandra Sahu & Rama Govindarajan. Scientific Reports (Nature publishing), 4, No. 4771. Instability of a free shear layer in the vicinity of a viscosity-stratified layer, Kirti Chandra Sahu & Rama Govindarajan, Journal of Fluid Mechanics, 752 (2014): 626-648. On vortex filament methods for linear instability analysis of aircraft wakes, Juan A. Tendero, Vassilios Theofilis, Miquel Roura & Rama Govindarajan, Aerospace Science and Technology, to appear. 2013 Linear stability of miscible two-fluid flow down an incline. R Usha, Outi Tammisola, & Rama Govindarajan, Physics of Fluids, 25, 104102 Effect of density stratification on vortex merger. Harish Dixit & Rama Govindarajan, Physics of Fluids, 25, 016601. Do liquid drops roll or slide on inclined surfaces? Sumesh P Thampi, R. Adhikari, and Rama Govindarajan, Langmuir, 29, 3339−3346. A unified framework for global instability mechanisms in the plane channel, diverging channel and backward-facing step flow, Mamta R Jotkar, Jose Miguel Perez Perez, Vassilis Theofilis, Rama Govindarajan, AIAA Paper 2013-2463. BiGlobal and Point Vortex Methods for the Instability Analysis of Wakes, Juan A. Tendero, Pedro Paredes, Miquel Rouraz, Rama Govindarajan, Vassilios Theofilis, AIAA Paper 2013-2820. 2012 Spatio-temporal linear stability of double-diffusive two-fluid channel flow. Kirti Chandra Sahu & Rama Govindarajan, Physics of Fluids, 24 (5). 054103_1-054103_10. ISSN 0031-9171. Stability of developing film flow down an inclined surface. Sarath Ramadurgam, RVK Chakravarthy, Gaurav Tomar & Rama Govindarajan, Physics of Fluids, 24 (10). 102109_1-102109_14. ISSN 00319171. Oscillatory settling in wormlike-micelle solutions: bursts and a long time scale. Nitin Kumar, Sayantan Majumdar, Aditya Sood, Rama Govindarajan, Sriram Ramaswamy, AK Sood, Soft Matter, 8 (16). pp. 4310-4313. ISSN 1744-683X. This was designated as a “hot paper” by the journal. Secondary instabilities in incompressible axisymmetric boundary layers: effect of transverse curvature. Vinod, Narayanan & Rama Govindarajan, ASME Journal of Fluids Engineering, 134 (2). 024503_1024503_4. ISSN 0098-2202 The hydraulic jump and the shallow-water equations, Special Issue, International Journal of Advances in Engineering Sciences and Applied Mathematics, Ratul Dasgupta and Rama Govindarajan, Springer, 3 (14). pp. 126-130. ISSN 0975-0770. Invited paper. The plate reaction, and its effect on the shape and size of a liquid drop sitting on a solid surface inclined to gravity, Sumesh P. Thampi, Vybhav Rao and Rama Govindarajan, International Journal of Science Research 01, 02, 59-64, Invited paper, Festschrift issue. Flow control via porous coating of compliant actuators: a simple interactive model Flow control via porous coating of compliant actuators: a simple interactive model, Divya Venkataraman, Alessandro Bottaro and Rama Govindarajan, Proc. IUTAM Symposium on Bluff Body Wakes. On global instability of variable aspect ratio channel flows. Mamta R. Jotkar, Gayathri Swaminathan, Vassilis Theofilis & Rama Govindarajan, AIAA 2012-3273, 42nd AIAA Fluid Dynamics Conference and Exhibit. 2011 Linear stability of double diffusive two-fluid channel flow. Kirti Chandra Sahu & Rama Govindarajan. Journal of Fluid Mechanics, 687, 529-539. This paper was shortlisted for “Focus on Fluids”. Stability of a vortex in radial density stratification: role of wave interactions, Harish N Dixit & Rama Govindarajan, Journal of Fluid Mechanics, 679, 582 - 615. Vortex shedding patterns, their competition, and chaos in flow past inline oscillating rectangular cylinders, Srikanth T, Harish N Dixit, Rao Tatavarti & Rama Govindarajan, Physics of Fluids 23, 073603. The possible minimum energy shapes of static drops on inclined surfaces. Sumesh P.Thampi & Rama Govindarajan, Physical Review E, 84, 046304. Global instabilities in diverging channel flows, Gayathri Swaminathan, Kirti Chandra Sahu, A Sameen & Rama Govindarajan, Theoretical and Computational Fluid Dynamics, 25, 53-64. 2010 Non-similar solutions of the viscous shallow water equations governing weak hydraulic jumps. Ratul Dasgupta & Rama Govindarajan, Physics of Fluids 22, 112108. Vortex-induced instabilities and accelerated collapse due to inertial effects of density stratification, Harish N Dixit & Rama Govindarajan, Journal of Fluid Mechanics 646, 2010, 415 -439. This paper was featured on the cover of JFM. The possible equilibrium shapes of static pendant drops, P T Sumesh & Rama Govindarajan, Journal of Chemical Physics 133, 144707. An introduction to hydrodynamic stability, Anubhab Roy & Rama Govindarajan, in Rheology of Complex Fluids ed. J Murali Krishnan, Springer. Transient growth and why we should care about it, Rahul Bale & Rama Govindarajan, Resonance, 15, No. 5, 441-457. Shedding behaviour in flow past an inline oscillating square cylinder, Srikanth T., Harish N Dixit & Rama Govindarajan, Proc. IUTAM Symposium on Bluff Body Wakes. 2009 Instabilities due a vortex at a density interface: gravitational and centrifugal effects. Harish N Dixit & Rama Govindarajan, Proc. Seventh IUTAM Symposium on Laminar-Turbulent Transition, Ed. Schlatter & Henningson, Springer. Global Instabilities in Wall Jets. Gayathri Swaminathan, A Sameen & Rama Govindarajan, Proc. Seventh IUTAM Symposium on Laminar-Turbulent Transition, Ed. Schlatter & Henningson, Springer. Two-dimensional flow field in the vicinity of an accelerating bodies. Srikanth Rao, Rao Tatavarti & Rama Govindarajan. Proc. Second National Conference of the Ocean Society of India. Global instabilities in non-symmetric convergent-divergent channels. Gayathri Swaminathan & Rama Govindarajan, Proc. Symposium on Global Flow Instability and Control. 2008 The relative roles of divergence and velocity slip in the stability of plane channel flow, K.C. Sahu, A. Sameen and R. Govindarajan, European Physical Journal, Appl. Phys., 44, 101107. Random Vortex-Street Model for a Self-Similar Plane Turbulent Jet, Victor S. Lvov, Anna Pomyalov, Itamar Procaccia and Rama Govindarajan, Physical Review Letters, 101, 094503. In what sense is a low-Reynolds number mixing layer stable? R. Narasimha, Pinaki Bhattacharya and Rama Govindarajan, Proc. 12th Asian Congress of Fluid Mechanics, Daejeon, Korea. 2007 The effect of wall heating on instability of channel flow. A Sameen & Rama Govindarajan, Journal of Fluid Mechanics, 577, 417-442. Corrigendum in 673 (2011), 603-605, with Rahul Bale. Stability of miscible core-annular flows with viscosity stratification. B. Selvam, S. Merk, Rama Govindarajan & E. Meiburg, Journal of Fluid Mechanics, 592, 23 -49. Gravity-free hydraulic jumps and metal femtolitre cups. Manikandan Mathur, Ratul DasGupta, Neena Susan John, N. R. Selvi, G. U. Kulkarni, & Rama Govindarajan, Physical Review Letters, 98, 164502. Linear instability of entry flow in a pipe, Kirti Chandra Sahu & Rama Govindarajan, ASME Journal of Fluids Engineering, 129, Issue 10, 1277-1280. The effectiveness of wall heating as a control option for channel flow. A Sameen & Rama Govindarajan, Sadhana, 32, 65-81. The signature of laminar instabilities in the zone of transition to turbulence. N. Vinod & Rama Govindarajan, Journal of Turbulence, 8, 1-17. A general method for linear instability computations for flow through arbitrary two-dimensional geometries. Gayathri Swaminathan & Rama Govindarajan, Proc. Seventh Asian CFD Conference. Study of a lid-driven cavity in an axisymmetric geometry. Ratul DasGupta & Rama Govindarajan, Proc. IUTAM Symposium on Unsteady Separated Flows and their Control. 2006 The critical Reynolds number of a laminar incompressible mixing layer from minimal composite theory. Pinaki Bhattacharya, Maalika Manoharan, Rama Govindarajan & R Narasimha, Journal of Fluid Mechanics, 565, 105-114. A Facile Method of Producing Femtoliter Metal Cups by Pulsed Laser Ablation. Neena Susan John, N. R. Selvi, Manikandan Mathur, Rama Govindarajan & G. U. Kulkarni, J. Physical Chemistry B, 110, 2297522978. Flow past a rectangular cylinder in a stratified fluid. Harish Dixit, A Sameen, Rama Govindarajan, Proc. Sixth Intl. Symposium on Stratified Flows, Perth, Australia (Ed: G.N. Ivey), 189-194. Direct numerical simulation of a pressure driven channel flow with stable thermal stratification. Kaushik Srinivasan & Rama Govindarajan, Proceedings of the 3rd BSME -ASME International Conference on Thermal Engineering, Dhaka. Instability of entry flow in a pipe. Kirti Chandra Sahu & Rama Govindarajan, Proc. Eleventh Asian Congress of Fluid Mechanics. Is a stable laminar mixing layer possible? Pinaki Bhattacharya, Rama Govindarajan & R Narasimha, Proc. Eleventh Asian Congress of Fluid Mechanics. 2005 Manipulating transition to turbulence: A viscosity stratification does not always help. Vijayakumar Chikkadi, A. Sameen & Rama Govindarajan, Physical Review Letters, 95, 264504. Dynamical systems model of entrainment due to coherent structures. Srevatsan Muralidharan, KR Sreenivas & Rama Govindarajan, Physical Review E, 72, 046308. Drag reduction by polymer additives in decaying turbulence. Chirag Kalelkar, Rama Govindarajan, & Rahul Pandit, Physical Review E, 72, 017301. Stability of flow through a slowly diverging pipe. Kirti Chandra Sahu & Rama Govindarajan, Journal of Fluid Mechanics, 531, 325-334. Accurate estimate of disturbance amplitude variation from solution of minimal composite stability theory. Rama Govindarajan and R. Narasimha, Theoretical and Computational Fluid Dynamics, 19 (4): 229-235. Instabilities and transition in boundary layers. N. Vinod and Rama Govindarajan, Pramana J. Physics, special issue, 64, No. 3, 323-332. Super-linear speedup of a parallel multigrid Navier-Stokes solver on Flosolver. T. N. Venkatesh, V. R. Sarasamma, Rajalakshmy S., Kirti C. Sahu & Rama Govindarajan, Current Science, 88, No. 4, 589-593. Article: Tsunami relief: an observer’s viewpoint. 2005. Proceedings of Six months after the Tsunami, NIAS, Bangalore. 2004 The pattern of breakdown of laminar flow into turbulent spots. N Vinod & Rama Govindarajan, Physical Review Letters, 93, 114501. Effect of miscibility on the linear instability of two-fluid channel flow. Rama Govindarajan, International Journal of Multiphase Flow, 30/10, 1177-1192. A minimal composite theory for stability of non-parallel compressible boundary-layer flow. Sanjeev Rao, Rajeswari Seshadri & Rama Govindarajan, Theoretical and Computational Fluid Dynamics, 17, No. 4, 233-248. The segregation instability of a sheared suspension film. Rama Govindarajan, PR Nott & S Ramaswamy, Proc. Tenth Asian Cong. Fluid Mech., B31. 2003 Shell model for drag reduction with polymer additive in homogeneous turbulence. Roberto Benzi, Elisabetta De Angelis, Rama Govindarajan & Itamar Procaccia, Phys. Rev. E, 68, 016308. Stabilization of hydrodynamic flows by small viscosity variations. Rama Govindarajan, Victor S. L’vov, Itamar Procaccia & A. Sameen, Phys. Rev. E, 67, 026310. Stripes in sheared non-brownian suspensions with a free surface. Rama Govindarajan, P. R. Nott & S. Ramaswamy, Physica A, 318/1-2, 80-84. Are subtransitions in boundary layers a signature of laminar instability? N Vinod & Rama Govindarajan, Proc. International Symposium on Advances in Fluid Mech., 200-210. 2002 “Universal behaviour of entrainment due to coherent structures in turbulent shear flow,” Rama Govindarajan, Phys. Rev. Lett., 88, 134503. “Stability analysis of an axisymmetric boundary layer,” N. Vinod, Hamsa Balakrishnan & Rama Govindarajan, Proc. Ninth Asian Cong. Fluid Mech. “Secondary instabilities in stratified channel flow,” A. Sameen, O.N. Ramesh & Rama Govindarajan, Proc. Ninth Asian Cong. Fluid Mech. “Instabilities in spatially developing flows: a fresh perspective,” Rama Govindarajan, Proc. Ninth Asian Cong. Fluid Mech. “Surprising effects of minor viscosity gradients,” Rama Govindarajan, J. Indian Inst. Sci., 82 121127. 2001 “Retardation of the onset of turbulence by minor viscosity contrasts,” Rama Govindarajan, V. S. L’vov & I. Procaccia, Phys. Rev. Lett., 87, 174501. “Estimating amplitude ratios in boundary layer stability theory: a comparison between two approaches,” Rama Govindarajan & R. Narasimha, J. Fluid Mech., 439 403-412. “Stabilization and destabilization of channel flow by location of viscosity-stratified fluid layer,” Balaji T. Ranganathan & Rama Govindarajan, Phys. Fluids (Lett.), 13 No. 1, 1-3. “A theory of suspension segregation in horizontal couette cells,” Rama Govindarajan, P. R. Nott & S. Ramaswamy, Phys. Fluids (Lett.) 13, 12, 3517-3520. “Stability of non-parallel flows: minimal composite theories”, R. Narasimha & Rama Govindarajan, Proc. 14th Australasian Fluid Mech. Conf. “The transition zone in adverse pressure gradient boundary layers: results from stochastic simulations,” N. Vinod & Rama Govindarajan, Proc. XV Intl. Symp. Air Breathing Engines, 1093. 2000 “Transition delay by surface heating: a zonal analysis for axisymmetric bodies,” Rama Govindarajan & R. Narasimha, J. Fluid Mech., 418, 77-100. “The role of the critical layer in the stability of viscous shear flows,” Rama Govindarajan, Current Sci., 79, 6, 741-746. “Minimal composite equations and the stability of non-parallel flows,” R. Narasimha & Rama Govindarajan, Current Sci., 79, 6, 730-740. 1990’s 1999: “A low-order parabolic theory for two-dimensional boundary layer stability,” Rama Govindarajan & R. Narasimha, Phys. Fluids, 11 No. 6, 1449-1458. 1999: “Low-order Stability Theory for Compressible Boundary Layer Flow,” Deepanjan Mitra, Rajeswari Seshadri, Sanjeev Rao & Rama Govindarajan, in Laminar-Turbulent Transition, Springer, 487-492. 1999: The transition zone on a heated axisymmetric body," Rama Govindarajan & R. Narasimha, in Laminar-Turbulent Transition, Springer, 351-356. 1999: “Stability of weakly non-similar swept-wing boundary layers,” Rama Govindarajan & R. Narasimha, in Laminar-Turbulent Transition, Springer, 193-198. 1999: “Turbulence and Flying Machines,” Resonance, 4, No. 11, 54-62. 1998: “Mixing and chaotic fluid particle trajectories in the flow around two leap-frogging vortex rings,” Rama Govindarajan, A. Leonard & S. Wiggins, in Lecture Notes in Physics, ed. C.-H. Bruneau, Springer, 482-487. 1998: “Jamming mechanisms in homogeneous and heterogeneous traffic flow,” Rizwan Ameer, Deepak Raj M & Rama Govindarajan, Proc. 3rd Asian Comput. Fluid. Dyn. Conf., 2, 144-149. 1998: “Stability of swept wing boundary layers: a low-order theory,” Rama Govindarajan, R. Narasimha & Avinash Lohit, Proc. 3rd Asian Comput. Fluid. Dyn. Conf., 2, 56-61. 1998: “Vortex sheets in plane strain and the fine structure of turbulence,” R. Narasimha & Rama Govindarajan, in Recent Advances in Fluid Mechanics, ed. by PL Sachdev & M Venkatachalappa, Gordon & Breach, 1 67-75. 1997: “A low-order theory for stability of non-parallel boundary layer flows,” Rama Govindarajan & R. Narasimha, Proc. Roy. Soc. Lond. A, 453, 2537-2549. 1997: “Absolute instability in spatially developing two-dimensional wakes,” Rama Govindarajan, R. Narasimha & J.S.B. Gajjar, Proc. 7th Asian Cong. Fluid Mech., 1, 163-166. 1995: “Stability of spatially developing boundary layers in pressure gradients,” Rama Govindarajan & R. Narasimha, J. Fluid Mech., 300, 117-147. 1991: “The role of residual nonturbulent disturbances on transition onset in two-dimensional boundary layers,” Rama Govindarajan & R. Narasimha, J. Fluids Engg., Trans. ASME, 113, 147-149. Reviewing and Editorial Board On the Editorial Advisory Board of the Physics of Fluids. Was on the Editorial Board of Sadhana. Reviewer for about 30 papers a year for the Physics of Fluids, Physical Review Letters, Physical Review E, Journal of Fluid Mechanics, Langmuir, European Journal of Mechanics B Fluids, Pramana, Sadhana, ASME Journal of Fluids Engineering, etc. External examiner for PhD theses in IIT Kanpur, IIT Chennai and KTH Stockholm. Proceedings edited: Sixth IUTAM Symposium on Laminar-Turbulent Transition, Springer 2006. Advances in Fluid Mechanics, with M Alam, ON Ramesh and KR Sreenivas, Bangalore, July 2003. Teaching, Mentoring, Outreach Courses Taught My usual method is to include a large component of assignments and project work, 4-5 tests and a final exam. Courses taught: “Continuum Mechanics” 5 credits, TCIS, Autumn 2014 (to co-teach). “Mathematical Methods” 5 credits, TCIS, Autumn 2014. “Nonlinear dynamics” 5 credits, TCIS, Spring 2014, co-taught. “Mathematical Methods” 5 credits, TCIS, Autumn 2013. “Advanced continuum mechanics” 4 credit. TCIS, TIFR-UoH joint course, Spring 2013 (co-taught). “Bridge Mathematics” (MM102 3 credit) Univ of Hyderabad 2012. This is the only undergraduate course in this list. “Mathematical Methods” (JF201, 3 credit) Aug-Dec, 2000, 2001, 2009, 2010 (co-taught), 2011. “Introduction to Fluid Mechanics” (JF203, 3 credit) Aug-Dec 2007 and 2008. “Nonlinear dynamics: applications to Fluid Mechanics” (JF202, 3 credit) Aug-Dec 2005 and 2006. “Advanced Topics in Fluid Mechanics” (JF301, 3 credit) co-taught, Jan-Apr 2001 and 2002. Also taught small portions of courses elsewhere (in Mechanical Engineering, IISc Bangalore, Aerospace Engineering, IIT Mumbai and SN Bose Centre), and in refresher programmes for teachers. PhD theses supervised Name Sumesh P Thampi Anubhab Roy Divya Venkataraman Thesis topic Statics and Dynamics of Drops on Solid Surfaces: Theory and Simulations PhD Present affiliation 2012 Oxford University, Postdoctoral Fellow Singular Eigenfunctions in Hydrodynamic Stability : The Roles of Rotation, Stratification and Elasticity. Co-advisor: Ganesh Subramanian 2012 Cornell University, Postdoctoral Fellow Drag reduction by surface-coating of cilia on airfoils. Co-advisor: Alessandro Bottaro, registered in the University of Genova. 2013 Harish N Dixit Some studies on vortices with density stratification 2011 IIT Hyderabad, Faculty member Ratul DasGupta A computational and semi-analytical study of laminar, standing hydraulic jumps 2011 IIT Bombay, Mumbai, Faculty member Gayathri Swaminathan Global stability studies of some spatially developing flows 2011 AIRBUS Industrie Vinod Narayanan Stability and transition in boundary layers: effect of transverse curvature and pressure gradient 2007 IIT Gandhinagar, Faculty member Kirti Chandra Sahu Novel stability problems in pipe flows 2007 A. Sameen Stability of plane channel flow with viscosity stratification. Co-advisor: ON Ramesh, registered at IISc. 2005 IIT Madras, Chennai, Faculty member IIT Hyderabad, Faculty member MS Theses supervised Name Thesis topic Anirban Sinha Baroclinic instabilities in shear flows (Coadvisor: Jai Sukhatme) 2013 Columbia Univ. (PhD student) Rohith Swaminathan Merger of multiple vortices 2012 MIT /WHOI (PhD student) Vortex shedding patterns, their competition, and MS Present affiliation Srikanth Toppaladoddi chaos in flow past inline oscillating rectangular cylinders 2011 Oxford University (PhD student) Rahul Bale Transient growth in stratified channel flow 2009 Kaushik Srinivasan Direct numerical simulation of transition in unstably stratified Poiseuille flow 2007 Scripps Institute, San Diego Pinaki Bhattacharyya A linear stability analysis of the spatiallydeveloping incompressible plane laminar mixing layer using minimal composite theory (coadvisor: R. Narasimha) 2007 Antina Ghosh Simulation of nano-scale flows by molecular dynamics methods (co-advisor: Srikanth Sastry) 2007 Tel Aviv University Kirti Chandra Sahu Numerical computation of spatially developing flows by full multigrid technique 2003 Somewhere in Japan (Postdoc) KU Leuven (Postdoc) IIT Hyderabad (Faculty member) Present PhD students: At TIFR Cloud formation Starting Year 2011 Mamta Raju Jotkar Instabilities in converging-diverging channels 2010 Sharath Jose Instabilities in stratified flows 2010 Name Ravichandran Sivaramakrishnan Thesis area Rashmi Ramadugu (co-advisor: Prasad Perlekar) 2013 S Ganga Prasath (co-advisor: Narayanan Menon) 2013 Sumit Birwa (co-advisor: Narayanan Menon) 2013 Elsewhere Thesis area Year Registered at Manoj Tripathi Multiphase flows with evaporation. Main advisor: Kirti Sahu 2012 IIT Hyderabad Juan Angel Tendero Ventanas Vortex instabilities in aircraft wakes (I am an informal co-advisor.) Main advisor: Vassilis Theofilis 2010 University of Madrid Name Past Post-Doctoral fellows (formal and informal, with present affiliation as faculty members): Gaurav Tomar (IISc), Gaurav Sharma (IIT Roorkee), Amol Marathe (BITS Pilani), Vishwanath Sastry (NITK Surathkal), Tapan Naskar (SN Bose Institute), Rajeswari Seshadri (Pondicherry Central University), Ashwin Vaidya (Montclair State University), Soumyajit Mukherjee (IIT Bombay). Present Post-Doctoral Fellow Aarthi Sekharan (jointly with R Narasimha) Encouraging young people Over twenty young people have authored their first paper with me. To excite students about fluid dynamics I give research-overview lectures, and lectures as chief guest, at national events for extratalented children (JC Bose Programme, Kishore Vaigyanik, NAL), at local schools, colleges, in the Rotary Club etc. many times a year. For example, I was invited to the Visvesvaraya Ind & Tech Museum, Bangalore to give a popular science lecture on International Museum Day. I have been in panels of industry and academic leaders. I also and teach and help run pedagogical courses, e.g. under the AIM network (see http://www2.eng.cam.ac.uk/~mpj1001/AIM_home.html). I have taught several refresher courses for college and school teachers. I have advised over 100 summer and short-term students on research projects so far. Out of about 20 students I have guided under the JNC-SRFP programme, five have won the prestigious Rajiv Gandhi Fellowship for their project, which is given to about 10 students every year (selected out of 6000 applicants across India and across all disciplines). I have written invited articles in the books “Lilavati’s daughters” brought out by the Indian Academy of Sciences (http://www.ias.ac.in/womeninscience/LD_essays/117-120.pdf), and “A girl’s guide to a life in science”. Maybe because of this, many young women (and men) who wish to do science research approach me for mentoring and I try my best to encourage them. I have been a panelist and speaker in various Women in Science fora. Recognition Editorial Advisory Board member, Physics of Fluids. 2014 onwards. Member, IUTAM Symposia Panel for Fluid Mechanics, 2014 onwards. Fellow of the American Physical Society (Division of Fluid Dynamics). Elected in 2013. Honorary Professor, Mathematics Department, University of Hyderabad (a Central University), from January 2013. Mary Sears Fellow, Woods Hole Oceanographic Institution, 2012. Fellow of the Indian Academy of Sciences, Bangalore. Elected in 2009. Won the Shanti Swarup Bhatnagar Prize (Engineering Sciences), 2007. Fellow of the National Academy of Sciences, Allahabad. Elected in 2004. “Young Scientist of the Year 1997” and “Outstanding scientist” of the year 1996 at the National Aerospace Laboratories. “Freedom of the House” for the best outgoing student, Kailash Hostel, IIT Delhi, 1984. Invited to write a review paper on Instabilities in viscosity-stratified flows for the Annual Reviews of Fluid Mechanics, 2014. Invited as a distinguished Woman Alumnus of IIT Delhi to speak at the Golden Jubilee Celebrations on International Women’s Day, 2011. Related Activities Member of a Panel of Experts, Science & Engineering Research Board (SERB), Department of Science & Technology (DST) Government of India. This panel decided which proposals to DST under certain schemes get funding. Member, Engineering Sciences Research Committee, Council for Scientific and Industrial Research (CSIR), Government of India. This panel decides which proposals to CSIR get supported. I am also on committees which decide on prize winners, e.g. Young Scientist. Member, Advisory Committee of the Chemical Engineering Department, IIT Hyderabad. This committee reviews the progress of the department. Member, Indian National Committee for the Asian Congress of Fluid Mechanics, INCOAF. This committee decides, among other things, who the invited speakers from India will be. Member of the Second (2010) and Third (2012) UK-India Science and Innovation Councils. This council consisted of ministerial level meetings to decide on scientific cooperation between the two countries. Member of Faculty Selection Committees at IISER Kolkata and IIT Hyderabad. Steering committee member of the Indo-European network on Advanced Instability Methods (AIM) http://www-diva.eng.cam.ac.uk/AIM Network/AIM home.html. Was funded by the UK Engineering and Physical Sciences Research Council (EPSRC), and now continues under its own funding. PI from India on a Marie Curie International Research Staff Exchange Scheme (IRSES) project, ICOMASEF (Instability and COntrol of MAssively SEparated Flows). PI, with Prof. Benoit Pier, on an Indo-French research project on ``Rotating and curved boundary layer flows”, under CEFIPRA. Have been PI of several projects funded by DRDO, NPOL etc. and have been co-investigator in an Indo-UK project, as well as one funded by Boeing Aerospace. Visiting positions 2012: Mary Sears Fellow at the Woods Hole Oceanographic Institution, USA. 2006: Visiting Professor, University of California, Santa Barbara, USA. Collaboration with Eckart Meiburg. 2007, 2002, 2001: Visiting Professor (Visiting Scientist in 2001), Weizmann Institute of Science, Israel. Collaboration with Itamar Procaccia. Talks Invited talks in international meetings (Royal Society) Commonwealth Science Conference, Bengaluru, November 2014. Banff International Research Station (BIRS) workshop on Mathematical Modelling of Particles in Fluid Flow, Banff, Canada, August 2014. Kavli Institute of Theoretical Physics (KITP) Programme on Fluid-Mediated Transport in Geophysical Flows, Santa Barbara, November 2013. Workshop on “Transport of particles in turbulent flows” ICTS, Bangalore, October 2013. “Instabilities driven by viscosity stratification” Indo-French Workshop on Deep-Earth, Bangalore, September 2013. Fluids Days. Bangalore, July 2013. “Nonlinear stability and dynamics” FLOW-NORDITA Summer School on Advanced Instability Methods for Complex Flows, Stockholm May 2013. “Film flow down an inclined plate and the shallow water equations’’ Fifth Indo-Israel meeting, October 2011, Kochi. Plenary speaker at the AIM-ED International Graduate School on Stability, Transition to Turbulence and flow Control, Cambridge University, Aug 2011. Topics covered: Nonlinear dynamics, instabilities in viscosity-stratified flows. “Hydraulic jumps” Humboldt Kolleg on Self-Organised Criticality, Dynamics of Complex Systems, Bangalore, Feb 2011. “The shallow-water equations and the hydraulic jump” International Meeting on Recent Advances in Mechanics, IIT Chennai, Jan 2011. “Are the shallow water equations correct near Froude number=1?” Indo-European Workshop on Advanced Instability Methods, JNCASR, Jan 2011. Perspectives in Non-Linear Dynamics, PNLD III, 2010 and PNLD I, 2004, Satellite meetings of STATPHYS Cairns and STATPHYS Bangalore, on Hydraulic jumps and turbulent spots, respectively. “Two gravity-driven flows” Indo-French Meeting on Soft Interfaces, ESPCI Paris, July 2010. “The transition to turbulence in shear flows.” International Conference on Turbulence, IIT Kanpur, December 2009. “ A summary of stability studies in this group”, India-UK Workshop on Non-normality, IIT Chennai and JNCASR Bangalore, January 2009. “Instabilities in variable-property flows and the continuous spectrum.” Workshop on Wall Bounded Shear Flows: Transition and Turbulence. Isaac Newton Institute for Mathematical Sciences, Cambridge, September 2008. “ Death of a vortex at the hands of a (spiralling) density interface”. Fourth Indo-Israeli Conference on Condensed Matter Physics, Tel Aviv, November 2008. The hydraulic jump in gravity, and surface-tension-driven flows. Fourth Indo-Israeli Conference on Condensed Matter Physics, Tel Aviv, November 2008. “The breakdown to turbulence in stratified environments. International Conference on Nonlinear Dynamics and Turbulence, Bangalore, July 2008. Flow instabilities: an introduction. Three lectures. IMI International conference and workshop on turbulence and nonlinear dynamics, Bangalore, January 2008. Research in our group: a jhalak. Fluids Days, JNCASR Bangalore, January 2008. Instabilities in shear flow, invited poster, Second Indo-US Frontiers of Science Meeting, Irvine, California, January 2007. Gravity-free hydraulic jumps and metal femtocups. NCBS/JNC/Harvard Symposium, August 2006. Wall heating as a flow control option, (International) Conference on Flow Control and Diagnostics, Coorg, February 2006. Instabilities of fluid flows and the transition to turbulence, India Symposium, TWOWS Third General Assembly and International Conference on Impact of Women's Research on Science and Technology in the New Millennium, Bangalore, November 2005. Instabilities and transition to turbulence in pipe flows, Third Indo-Israeli Conference on Condensed Matter Physics, Puri, April 2005. Global Flow Instability and Control III-V, Crete, Greece, 2005-2012. (I was invited to one of these meetings and a contributor at another.) “Instabilities in spatially developing flows: a fresh approach,” Ninth Asian Congress of Fluid Mechanics, Isfahan, Iran, 2002. “A critical-layer-driven instability in miscible two-fluid channel flow,” International Workshop on Miscible Interfaces, Paris, Jul 2001. “Minimal composite stability theory for three-dimensional boundary layer stability,” International Workshop on Fluid Mechanics - FLUMEC 2000, IIT Chennai, Jan 2000. Plenary (contributed) lecture at the Sixteenth International Congress of Numerical Methods in Fluid Dymanics, Arcachon, France, 1998. ``Low-order theory for stability of non-parallel boundary layer flows,'' (International) Discussion Meeting on Instability and Transition in Fluid Flows, Indian Academy of Sciences, Nov 1996. Invited talks in Indian meetings: UOP India Technical Community Symposium, Gurgaon September 2014. IITB Climate Workshop, March 2014. Stabilization methods for singularly perturbed differential equations, SERC Workshop, IISc Bangalore, Oct. 2013. “Introduction to Fluid Mechanics” 3 lectures, DST-SERC (Department of Science and Technology Government of India, Science & Engineering Research Council) Schools on Nonlinear Dynamics, Kolkata December 2012, and twelve lectures in the Third SERC School (with a focus on Turbulence and Pattern formation) in Kolkata, 2006. “Big effects of small perturbations”, Golden Jubilee Conference on Women in Science and Technology (lectures by distinguished alumnae), IIT Delhi, Mar 2011. “Vortices in density gradients: Mergers, split-ups and death” 76th Annual Meeting of the Indian Academy of Sciences, Goa, November 2010. “Introduction to fluid mechanics” 5 lectures, School on Nonequilibrium Statistical Physics, April 2010, RRI Bangalore. “Introduction to flow stability” DST SERC School, Jan 2010, IIT Chennai. Keynote lecture, National Training Programme on CFD, Visakhapatnam, November 2009. “The role of instability in high Reynolds number fluid mechanics” Second National Conference of Shanti Swarup Bhatnagar Award Winners, Devi Ahilya Vishwavidyalay, Indore, July 2009. “Introduction to flow stability”, IMI Workshop on PDE and related analysis, September 2009. “Transient growth in shear flow and why we should care about it” 75 th Anniversary Conference of the Physics Department, Indian Institute of Science, May 2009. “Accelerated annihilation of a vortex due to density stratification”, Centenary Conference of the Aerospace Engineering Department, IISc Bangalore, May 2009. “The Boussinesq approximation and vortical flows in the ocean”, Second National Conference of the Ocean Society of India, Vishakhapatnam, April 2009. Fluid mechanics: old answers to new questions, new answers to old questions. Inaugural address at the National Workshop of the Ocean Society of India on Emerging trends in Ocean Science and Technology, Kochi, March 2007. Instabilities in shear flow of variable property fluids, Third Complex Fluids Symposium, IIT Kanpur, December 2006. The laminar-turbulent transition region: puzzles and progress, Perspectives in Nonlinear Dynamics, Satellite meeting of the STATPHYS-22 Conference, IIT Chennai, July 2004. Symposium on Stability Analysis of Differential Equations with Applications to Flow Problems, IIT Kanpur March 2014. Introduction to nonlinear dynamics and turbulence. (a series of five lectures) Workshop on Nonlinear Dynamics and Turbulence SN Bose Centre, Kolkata, Mar 2003. Invited talks at other National Conferences in Kochi, Chandigarh, Bangalore, Kolkata, Aligarh, Chennai, Mumbai, Kanpur, Ahmedabad, Coorg. Named lectures “Fluid mechanics – from fundamentals to frontiers” The 2011 Popli Memorial Lectures (set of three), St. Stephens College, Delhi. “Unconvering patterns in the laminar-turbulent transition” The 2004 CNR Rao Oration Award Lecture, JNCASR Bangalore. Recent Seminars/ Colloquia At IIT Bombay Mumbai, IISER Pune, Brown University, Harvard University, University of Michigan at Ann Arbor, University of California at Santa Barbara, Woods Hole Oceanographic Institution, KTH Mechanics, IIT Ropar, IIT Madras Chennai, University of Hyderabad, TIFR (Natural Sciences Colloquium), TIFR-CAM. Recent Outreach Activities Panelist at the Women in Science Session, Dynamics Days Asia Pacific, IIT Madras, July 2014. Speaker at ``R& D initiatives for Women Scientists and Technologists’’ Engineering Staff College of India, Hyderabad February 2014. Advising women on how to stay relevant in research. Conference Organisation IUTAM Symposium on Multiphase Flows with Phase Change, December 2014. On the scientific Committee. Perspectives in Nonlinear Dynamics (PNLD-V) A satellite meeting of STATPHYS-25, UoH-TIFR, Hyderabad, July 2013. One of the organisers. Indo-European meeting on Instabilities in Shear Flows, Jan 2012, IIT Mumbai, one of the three organisers. Indo-European meeting on Instabilities in Shear Flows, Jan 2011, 2010 and 2009, JNCASR Bangalore and IIT Chennai, one of the two organisers (under the AIM Network). Seventh IUTAM Symposium on Laminar-Turbulent Transition, 2009, Stockholm, on the scientific committee. IISc Mathematics Initiative Workshop and Conference on Turbulence and Nonlinear Dynamics, Bangalore JanFeb 2008, one of the organisers. Fluids Days, JNCASR Bangalore Dec 2007 - Jan 2008, one of the organisers. Sixth IUTAM Symposium on Laminar-Turbulent Transition, 13-17 Dec 2004: chairman of the scientific and organising committees. http://www.jncasr.ac.in/iut04 International Symposium for Advances in Fluid Mechanics, JNCASR Bangalore 24-25 July 2003: one of the organisers. http://www.jncasr.ac.in/emu SAROD-2003 Symposium on Applied Aerodynamics and Design of Aerospace Vehicles: one of the organisers. http://www.ada.gov.in/sarod/