Uregent LES model

ck3 · May 17, 2012, 16:46

I want to simulate flow over a wavy wall and I chose this case:

Separated Turbulent Flow Over a Wavy Wall
DNS by Maaß and Schumann

http://cfd.mace.manchester.ac.uk/cgi...html&1&0&0&0&0

First, I compared the following models of the commercial code ANSYS Fluent (K-E, RNG K-E and RSM) in 2 and 3D and I had good results.

Second, I have used unsteady Realizable K-E (3D)
and I had good results too.

For the continuity of my work, I want to run a simulation with LES model to see the effect of wave amplitude (various range of the wave amplitude).

I have build a geometry with more grid density near the walls.

Can you help me run the LES model, knowing that this is the first time I use it.

Thank you in advance.

Far · May 18, 2012, 02:01

I am interested in this work too.

ck3 · May 18, 2012, 02:08

Thank you for your response, have you any tutorial obout LES method with Fluent please or any idea about my problem?

ck3 · May 21, 2012, 02:08

Any help please, it's very urgent.

Far · May 24, 2012, 13:51

Sorry I can't be of any help as I have no experience in this field. But I know some one who has recently done a simulation on cylinder with LES. I will try to forward his email id to you by tomorrow.

ck3 · May 24, 2012, 14:33

Thank you, I will wait patiently your message.

ck3 · June 5, 2012, 00:30

Dear Far,
I'm still waiting for your answer

May 17, 2012, 16:46	Uregent LES model	#1
ck3 Member Khaled Join Date: Mar 2009 Posts: 53 Rep Power: 17	I want to simulate flow over a wavy wall and I chose this case: Separated Turbulent Flow Over a Wavy Wall DNS by Maaß and Schumann http://cfd.mace.manchester.ac.uk/cgi...html&1&0&0&0&0 First, I compared the following models of the commercial code ANSYS Fluent (K-E, RNG K-E and RSM) in 2 and 3D and I had good results. Second, I have used unsteady Realizable K-E (3D) and I had good results too. For the continuity of my work, I want to run a simulation with LES model to see the effect of wave amplitude (various range of the wave amplitude). I have build a geometry with more grid density near the walls. Can you help me run the LES model, knowing that this is the first time I use it. Thank you in advance.

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May 18, 2012, 02:01		#2
Far Senior Member Sijal Join Date: Mar 2009 Location: Islamabad Posts: 4,558 Blog Entries: 6 Rep Power: 54	I am interested in this work too.

May 18, 2012, 02:08		#3
ck3 Member Khaled Join Date: Mar 2009 Posts: 53 Rep Power: 17	Thank you for your response, have you any tutorial obout LES method with Fluent please or any idea about my problem?

May 21, 2012, 02:08		#4
ck3 Member Khaled Join Date: Mar 2009 Posts: 53 Rep Power: 17	Any help please, it's very urgent.

May 24, 2012, 13:51		#5
Far Senior Member Sijal Join Date: Mar 2009 Location: Islamabad Posts: 4,558 Blog Entries: 6 Rep Power: 54	Sorry I can't be of any help as I have no experience in this field. But I know some one who has recently done a simulation on cylinder with LES. I will try to forward his email id to you by tomorrow.

May 24, 2012, 14:33		#6
ck3 Member Khaled Join Date: Mar 2009 Posts: 53 Rep Power: 17	Thank you, I will wait patiently your message.

June 5, 2012, 00:30		#7
ck3 Member Khaled Join Date: Mar 2009 Posts: 53 Rep Power: 17	Dear Far, I'm still waiting for your answer