Which Turbulent Model is Suitable at Re=3900?

September 6, 2007, 08:08

Dear

I am trying to simulate the flow over a cylinder at Re=3900. I used k-epsilon model and k-omega model, but I didn't get any vortex shedding and my lift coefficient didn't oscillate. Could you please help me, which turbulence model is suitable for this flow? Or any other direction?

Mahbub

September 6, 2007, 08:30

K-Omega plus SST?

September 6, 2007, 09:02

Thanks! Jesse,

But some time before I have used k-epsilon realisible model and got excellent result both Cd and vortex shedding. Could you please tell me which turbulent model is useful at Re=140000?

Mahbub

September 7, 2007, 16:57

I AM JAI SHANKAR V P . I AM CURRENTLY WORKING AS SENIOR LECTURER WITH SNMIMT IN INDIA .I AM CURRENTLY COMPLEATING MY MASTERS IN PRODUCTION ENGINEERING WITH COCHIN UNIVERSITY OF SCIEANCE AND TECHNOLOGY , KOCHI, KERALA , INDIA

I AM VERY MUCH INTRESTED IN THE SUBJECT CFD

CAN YOU HELP[ ME STUDY THE SAME PLEASE MY EMAIL ID IS shankarvp@yahoo.co.in

with regards

jvp

September 6, 2007, 08:08	Which Turbulent Model is Suitable at Re=3900?	#1
Mahbub Guest Posts: n/a	Dear I am trying to simulate the flow over a cylinder at Re=3900. I used k-epsilon model and k-omega model, but I didn't get any vortex shedding and my lift coefficient didn't oscillate. Could you please help me, which turbulence model is suitable for this flow? Or any other direction? Mahbub

September 6, 2007, 08:30	Re: Which Turbulent Model is Suitable at Re=3900?	#2
jesse Guest Posts: n/a	K-Omega plus SST?

September 6, 2007, 09:02	Re: Which Turbulent Model is Suitable at Re=3900?	#3
Mahbub Guest Posts: n/a	Thanks! Jesse, But some time before I have used k-epsilon realisible model and got excellent result both Cd and vortex shedding. Could you please tell me which turbulent model is useful at Re=140000? Mahbub

September 7, 2007, 16:57	Re: Which Turbulent Model is Suitable at Re=3900?	#4
JAI SHANKAR V P[ Guest Posts: n/a	I AM JAI SHANKAR V P . I AM CURRENTLY WORKING AS SENIOR LECTURER WITH SNMIMT IN INDIA .I AM CURRENTLY COMPLEATING MY MASTERS IN PRODUCTION ENGINEERING WITH COCHIN UNIVERSITY OF SCIEANCE AND TECHNOLOGY , KOCHI, KERALA , INDIA I AM VERY MUCH INTRESTED IN THE SUBJECT CFD CAN YOU HELP[ ME STUDY THE SAME PLEASE MY EMAIL ID IS shankarvp@yahoo.co.in with regards jvp

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