24618 MAK 608E MODELING of TURBULENCE 2023/2024 Spring

 

24618 MAK 608E MODELING of TURBULENCE  2023/2024 Spring

Lecturer: Seyhan Onbaşıoğlu

Room #:  537

Tel: 293 1300-2455, e-mail: onbasiogl1@itu.edu.tr; suonbasioglu@gmail.com

Course hours:

Tuesday   09.30-12.30

Prerequisites:

Advanced knowledge of Fluid Mechanics and Heat Transfer, Computational Fluid Dynamics. Intermediate Knowledge of Software Coding

Textbooks:

 

1-    Davidson, L., Fluid mechanics, turbulent flow and turbulence modeling,  September 2023.

This eBook can be downloaded at

 http://www.tfd.chalmers.se/˜lada/postscript files/solids-and-fluids turbulent-flow turbulence-modelling.pdf

2-    Davidson, P.A., Turbulence An Introduction for Scientists and Engineers, University of Cambridge, 2015.

3-     Leschziner, Michael, Statistical turbulence modelling for fluid dynamics, demystified : an introductory text for graduate engineering students, 2015.

 

Also, some additional lecture notes will be distributed or uploaded on the class web page.

Updated lectures will also be given such as machine learning in turbulence modeling etc.

 

 

Assessment Criteria:

 

Quantity

Percentage

Midterm Exam

1

20

Homeworks

5

20

Term Paper

1

       20

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

 

Title

Chapter of the textbook

Feb. 13

Overview

Introduction to the Course

Introduction Slide

Feb. 20

Introduction to Turbulence, Turbulent Scales, Energy Spectrum, The Cascade Process

Davidson, Ch. 5

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

March 5

Reynolds Stress Models and Two Equation Models

Eddy Viscosity Models

Davidson, Ch. 11, 12

March 12

Scalar/Heat-Flux-Transport Modelling

Leschziner, Ch.13

March 19

Overview of RANS Models

Davidson, Chs. 13-17

March 26

MIDTERM

Introduction to LES

Davidson, Ch. 18

April 2

Test Filter, Bardina Model, numerical Methods

Davidson, Ch. 18

April 9-11

NO COURSE

 

April 16-18

URANS

DES

 

Davidson, Ch. 19

Davidson, Ch. 20

 

April 23

NO COURSE

 

April 30

Hybrid LES-RANS

Davidson, Ch. 21

May 7

Review

Davidson 22-28

May 14

Modeling Buoyant flows  in LES and RANS

General

May 21

Presentations

 

 

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