221504 MAK
608E MODELING of TURBULENCE 2025/2026 Spring
Lecturer: Seyhan Onbaşıoğlu
Room #: 537
e-mail: onbasiogl1@itu.edu.tr; suonbasioglu@gmail.com
Course hours: Friday. 09.30-12.30
Office Hours: Upon appointment
Prerequisites:
Advanced knowledge of
Fluid Mechanics and Heat Transfer, Transport Phenemona and Computational Fluid
Dynamics.
Lecture notes will be uploaded on Ninova.
Textbooks:
1-
Davidson, L., Fluid
mechanics, turbulent flow and turbulence modeling, December 2025.
2- Schiestel, R., Modeling and Simulations of Turbulent Fşows, John Wiley and Sons, 2006.
3-
Leschziner,
Michael, Statistical turbulence modelling for fluid dynamics, demystified : an
introductory text for graduate engineering students, 2015.
4-
Durbin,
P.A.,Pettersson Reif, B.A., Statistical Theory
and Modeling
for Turbulent Flows, Second Edition, John Wiley Sons, 2011.
5-
Kuo, K.K., Acharya,
R., Fundamentals of Turbulent and Multiphase Combustion, John Wiley and Sons,
2012.
6-
Davidson, P.A.,
Turbulence An Introduction for Scientists and Engineers, University of
Cambridge, 2015.
Also, some additional lecture notes will be
distributed or uploaded on the class web page regarding to machine learning
algorithms in turbulence models.
Assessment Criteria:
|
|
Quantity
|
Percentage |
Midterm Exam (April 03, 2026)
|
1 |
20 |
|
Homeworks |
5 |
15 |
|
Term Paper |
1 |
25 |
|
Final Exam |
1 |
40 |
Term paper
will include the computational investigation of a turbulent flow using OPEN SOURCE Codes and including the
comparison of the turbulence models. It should be written in journal paper
format and to be delivered on the last class of the semester.
FOR THE FINAL EXAM
-70% ATTENDANCE
-MINIMUM 50 POINTS AVARAGE FOR THE MIDTERM STUDIES
COURSE SCHEDULE
|
Week |
Title |
Chapter of the textbook |
|
1 Feb. 13 |
Overview Introduction to the Course |
Introduction Slide (Mostly from Schiestel) |
|
2 Feb. 20 |
Introduction to Turbulence,
Turbulent Scales, Energy Spectrum, The Cascade Process |
Davidson, Ch. 5 |
|
3 Feb. 27 |
Turbulent Mean Flow,
Probability Density Functions, Transport Equations for Turbulent Kinetic
Energy, Transport Equations or Reynolds Stresses, Correlations |
Davidson, Chs.: 6,7,8,9,10 |
|
4 March. 6 |
Reynolds Stress Models and
Two Equation Models Eddy Viscosity Models |
Davidson, Ch. 11, 12 |
|
5 March 13 |
Scalar/Heat-Flux-Transport Modelling |
Leschziner, Ch.13 |
|
HOLIDAY March 20 |
|
|
|
6 March 27 |
Turbulent Buoyant
Flows |
Durbin and Pettersson-Reif,
Ch. 8 |
|
7 April 03 |
Free Shear Flows MIDTERM (1.5 hours) |
Durbin and Pettersson-Reif, Ch. 4 |
|
8 April 10 |
Overview of Turbulent
Combustion in RANS |
Kuo and Acharya, Ch. 4 |
|
9 April 17 |
Introduction to LES |
Davidson, Ch. 18 |
|
10 April 24 |
Test Filter, Bardina Model,
numerical Methods |
Davidson, Ch. 18 |
|
11 May 01 |
This lecture coincides with a
holiday and will be covered in a later week. |
|
|
12 May 08 |
Discussion of Dissipation in
LES and RANS |
Davidson, Ch. 18 |
|
13 May 15 |
URANS, DES and Hybrid
LES-RANS and Review |
Davidson, Chs. 19-28 |
|
14 May 22 |
Modeling of Buoyant Flows in
LES |
Journal papers |
|
15 May. 01 Make up lecture |
Discussing Turbulent
Combustion in LES |
Kuo and Acharya, Ch. 4 |
|
16 Optional lecture (Either online or face to face) |
Machine Learning Algorithms
in Turbulence Modeling |
Journal papers |
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