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Showing results 1 to 7 of 7 Search took 0.01 seconds. Search: Posts Made By: aerosaravanan

Forum: OpenFOAM Running, Solving & CFD September 30, 2014, 06:42

Replies: 37 Drag force coefficient too high for a flow past a cylinder using komega sst Views: 9,096 Posted By aerosaravanan Hi Scabbard, I tried to simulate for Re... Hi Scabbard, I tried to simulate for Re 3900 with low reynolds model(LaunderSharmakepsilon). This time I got reasonable strouhal Number but high drag value.It's confusing me lot. Then for...

Forum: OpenFOAM Running, Solving & CFD September 28, 2014, 06:37

Replies: 37 Drag force coefficient too high for a flow past a cylinder using komega sst Views: 9,096 Posted By aerosaravanan Hi Scabbard, Your domain size is... Hi Scabbard, Your domain size is fine.You used 25D downstream and 10D in upstream,Top & Bottom.This is reasonable value for cylinder analysis.But I don't have any answer for your drag...

Forum: OpenFOAM Running, Solving & CFD September 27, 2014, 11:12

Replies: 37 Drag force coefficient too high for a flow past a cylinder using komega sst Views: 9,096 Posted By aerosaravanan Hi yibo, No I am not getting the correct... Hi yibo, No I am not getting the correct strouhal number.You can check the postprocessing folder in my case.The force coefficients are there.If possible you plot and check and even you can...

Forum: OpenFOAM Running, Solving & CFD September 27, 2014, 11:09

Replies: 37 Drag force coefficient too high for a flow past a cylinder using komega sst Views: 9,096 Posted By aerosaravanan Hi, I took the equation from one journal... Hi, I took the equation from one journal paper.The equations are given below.This is exclusively for kOmegaSST model For freestream: k=(3/2)*(uinf*I)^2 where uinf-freestream velocity...

Forum: OpenFOAM Running, Solving & CFD September 27, 2014, 09:23

Replies: 37 Drag force coefficient too high for a flow past a cylinder using komega sst Views: 9,096 Posted By aerosaravanan Hi Scabbard, As you asked. I am sharing... Hi Scabbard, As you asked. I am sharing my case. Hope It will help you. https://drive.google.com/file/d/0B8SReN-zV0P_dDg4aVA3OUVkbEE/edit?usp=sharing

Forum: OpenFOAM Running, Solving & CFD September 27, 2014, 09:18

Replies: 37 Drag force coefficient too high for a flow past a cylinder using komega sst Views: 9,096 Posted By aerosaravanan Hi Scabbard, I don't have any... Hi Scabbard, I don't have any recommendations.But after looking your case I found that you are using createPatchDict. Is that required for your case.You are defining symmetry on top and...

Forum: OpenFOAM Running, Solving & CFD September 26, 2014, 12:36

Replies: 37 Drag force coefficient too high for a flow past a cylinder using komega sst Views: 9,096 Posted By aerosaravanan Hi Scabbard, I am also having... Hi Scabbard, I am also having similar problem.My Re is 45000 almost all the settings are similar to you. I got good drag value but shedding frequency is very high. What about your case?...

Showing results 1 to 7 of 7

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