ERCOFTAC SIG28 SUMMERSCHOOL ON LES OF REACTING FLOWS THESSALONIKI 5.-11.9.2004
5.9.
Sun
9.00 – 10.00
Course
Introduction/Contents
Combustion Processes:
Overview of Research
Areas and Applications
Br
ea
k
A. Tomboulides
6.9.
Mon
8.15 – 10.00
Properties of turbulent flows
Computational challenges
Closure problem
Spatial and temporal
filtering
LES vs. RANS
Br
ea
k
K. Adams
7.9.
Tue
8.15 – 10.00
Basis of premixed, nonpremixed and partially
premixed
combustion for LES.
D. Veynante & L. Vervisch
8.9.
Wed
DAY TRIP TO ANCIENT SITES
10.30 –11.30
Conservation
Equations for
Reacting Flows
Simplified forms
of the equations
11.30 – 12.15/
Classification of
combustion
regimes and
flames: Premixed
and non-premixed
combustion,
specific issues
A. Tomboulides
D. Thevenin
10.30 – 12.15
Classical LES approaches:
- stress models
Alternative LES approaches :
- direct modelling of subgrid scales
- implicit SGS modeling for LES
Lunch
10.30 – 12.15
Basis of premixed, non-premixed and
partially premixed
combustion for LES (contd.) and tools
for SGS modelling of turbulent
combustion.
D. Veynante & L. Vervisch
Br
ea
k
D. Thevenin
Lunch
K. Adams
Br
ea
k
13.45–15.30
Basics of flow turbulence
Solving all scales: DNS
Cost requirements
Specific numerical methods
Special requirements for
boundary and initial conditions
Relations between DNS, LES
and RANS simulations
13.45 –14.30 / 14.45 – 15.30
Examples of DNS applications
with consequences for LES:
- Flame/vortex interaction
- Opposed-jet and jet flames
- Structure of turbulent
premixed and non-premixed
flames
- Flame/acoustics interaction
- Particle flows
D. Thevenin
16.00 – 17.45
Br
ea
k
13.45 –15.30
Overview of SGS modeling of
premixed turbulent
combustion.
D. Veynante & L. Vervisch
Examples of applications of
LES in non-reacting flows
Exercises
D. Thevenin & A. Tomboulides
Lunch
16.00 – 17.45
Required physical models
for reacting flows:
- thermodynamics
- molecular diffusion
- chemical reactions
- coupling issues
Accuracy level vs.
Numerical cost
Possibility of simplifications
and model reduction
K. Adams
Br
ea
k
16.00 – 17.45
Overview of SGS modeling
of non-premixed turbulent
combustion.
D. Veynante & L. Vervisch
ERCOFTAC SIG28 SUMMERSCHOOL ON LES OF REACTING FLOWS THESSALONIKI 5.-11.9.2004
9.9.
Thu
8.15 – 10.00
SGS turbulent transport in
flames.
Br
ea
k
D. Veynante & L. Vervisch
10.9.
Fri
8.15 – 10.00
Review of reactive LES
Filtering and closure Terms
SGS Closure for Momentum
Transport
Algebraic, 1- and 2equation dynamic models
Two-Level Simulation
S. Menon
11.9.
Sat
DAY TRIP TO CHALKIDIKI
10.30 – 12.15
Refined SGS modelling for premixed
turbulent combustion.
Lunch
D. Veynante & L. Vervisch
Br
ea
k
10.30 – 12.15
SGS Closure for Scalar Transport:
Scale Similarity Models
Linear-Eddy Models
Thin-Flame Models, PDF Models
Critical Analysis of SGS Models
Numerical and unresolved issues
Limitations, practical needs and
implications
RANS vs LES and DES
S. Menon
13.45 –15.30
Refined SGS modelling for
non-premixed and spray
turbulent combustion.
Br
ea
k
D. Veynante & L. Vervisch
Lunch
13.45 –14.30
Using LES to
understand
industrial
flame
stabilization
mechanisms
in swirling
flows
14.30-16.00
Laboratory
Flames
Gas Turbine,
and other
turbulent
reacting flow
applications
16.00 – 17.45
Comparison between LES
and experiments
LES of real combustion
systems
D. Veynante & L. Vervisch
Br
ea
k
16.30 – 17.15
Close up:
-
Reacting LES
as a Design
Tool?
F. Biagioli
(Alstom)
S. Menon
all
Feedback
Course Evaluation
Suggestions/ Outlook