ME421/521 Advanced Fluid Dynamics Fall 2015 Instuctor: Metin Muradoglu Office: Eng. 248 E-mail: mmuradoglu@ku.edu.tr Lectures: Monday & Wednesday 16:00-17:15 in CAE-B39 Office Hour: Wednesday 14:30-15:30 or by appointment Requirements: Mech 301 or equivalent and strong background in differential calculus Course Objectives: The course is designed to teach senior and first year graduate mechanical engineering students the fundamentals of the classical fluid mechanics at an advanced level that is beyond the scope of the first fluid mechanics course. An introduction to the Cartesian tensors and derivation of flow equations in various forms. Solutions to the flow equations using scaling and approximations. Creeping flows, boundary layer theory, unidirectional flows and lubrication theory with applications in engineering and biological systems. An introduction to modern computational tools and hands-on experience using a CFD package such as OpenFOAM. Learning Outcomes Upon successful completion of this course, a student will: - be able to use Cartesian tensors to manipulate flow equations; - understand the derivation and physical interpretation of the flow equations; - understand and effectively use the scaling and approximations to obtain analytical solutions; - understand the boundary layer theory, derivation and solution of the boundary layer equations; - understand the lubrication theory, its limitations and applications; - understand the concept of flow instability and turbulent flows; - be able to use modern computational tools and interpret the results. Tentative Schedule: Lectures Topic 2 lectures Fundamentals: Molecular motion, continuum hypothesis, introduction to kinetic theory 3 lectures 2 lectures Introduction to Cartesian Tensors Preliminary Concepts: Eulerian and Lagrangian descriptions, pathline, substantial derivative, fluid particle acceleration 6 lectures 7 lectures 4 lectures Chapter 1 (White) Conservation Laws for Compressible Viscous Flows: Chapter 2 Continuity equation: Mass flux, integral and differential equations, stream function. Momentum equation: Forces, stresses, symmetry of stress tensor; properties of second-order, symmetric tensors; Newtonian fluid; Derivation of momentum equations, boundary conditions; Euler equations, streamline coordinates. Energy equation: First law of thermodynamics, heat transfer, derivation of energy equation. Derivation of entropy equation, implications for transport coefficients. General form of Bernoulli equation. Solutions of the Viscous Flow Equations: Classification of solutions; Unidirectional flows; Similarity solutions; Lubrication theory; Creeping motion (White) Laminar Boundary Layer: Boundary layer equations; Similarity solution; Free-Shear Flows; Approximate integral solutions; Thermal boundary layer; Asymptotic solutions. 4 lectures Text 1.1-1.5 (Vincenti&Kruger) Turbulent Flows: Reynolds decomposition, Reynolds stresses, Reynolds equation. Self similar free shear flows; effective viscosity. Turbulent boundary layers; mixing length hypothesis. Turbulence models Chapter 4 (Kundu &Cohen) Chapter 5 & 6 (Panton) Chapter 3 (White) Chapter 5 (Kundu &Cohen) Chapter 4 (White) Chapter 16 (Kundu &Cohen) Chapter 6 (White) Chapter 23 (Panton) Grading: 1) Homework, Quizzes and Projects 2) Midterm Exam 3) Final Exam 30% 30% 40% Text Book: Viscous Fluid Flow (strongly recommended and available in bookstore) by Frank M. White, 3rd edition . Fluid Mechanics by Pijush K. Kundu, Ira M. Cohen,Academic Press, 2nd edition . Incompressible Flow By R.L. Panton , John Wiley&Sons. Physical Gas Dynamics (only the first chapter) By Vincenti and Kruger, Krieger Publishing Co. Additional References: An Introduction to Fluid Dynamics By G.K. Batchelor, Cambridge university Press Phsical Fluid Dynamics By D.J. Tritton, Clarendon Press, Oxford, 1988. Boundary-layer Theory By Herrmann Schlichting, Klaus Gersten, with contributions from Egon Krause and Herbert Oertel Jr. translated by Katherine Mayes Turbulent Flows By S.B. Pope, Cambridge University Press Time commitment and ECTS credit: Activity Number Time (hrs) Lectures 2x14=28 1.25 HWs and Project 14 5 Lab 0 0 Midterm Exam 1 25 Final 1 30 Total Work Load ECTS Credit: Total Work Load (hrs)/30* = 5.3 ~ 6 * 30 hours of work load is assumed to be 1 ECTS credit Predicted Total Work Load (hrs) 35 70 0 25 30 160