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Forum: Main CFD Forum

July 27, 2012, 15:16

Replies: 7

Help! How to hold turbulence in a 2d channel flow RANS simulation

Views: 2,737

Posted By 1/153

I will test with other LRN models to see if my...

I will test with other LRN models to see if my new implemented model is wrong somewhere. But have you ever use steady RANS to get a correct profile before? Which turb model did you use? Thanks

Forum: Main CFD Forum

July 27, 2012, 14:59

Replies: 7

Help! How to hold turbulence in a 2d channel flow RANS simulation

Views: 2,737

Posted By 1/153

Is that because 2D cant sustain the turbulence...

Is that because 2D cant sustain the turbulence structures, so to damp out all the turbulence? Or is that I should use RANS not URANS?

Forum: Main CFD Forum

July 27, 2012, 13:57

Replies: 7

Help! How to hold turbulence in a 2d channel flow RANS simulation

Views: 2,737

Posted By 1/153

Thanks for helping. Yes the velocity profile is...

Thanks for helping. Yes the velocity profile is here: [shared just for 24 hours]

http://f.imgtmp.com/Dcdfq.jpg

Forum: Main CFD Forum

July 27, 2012, 10:58

Replies: 7

Help! How to hold turbulence in a 2d channel flow RANS simulation

Views: 2,737

Posted By 1/153

Help! How to hold turbulence in a 2d channel flow RANS simulation

Newbie here.

I am doing a 2D rans simulation to investigate some turbulence models. I am wondering how to make the flow turbulent?

For example in a simple Re_tau=180 channel flow, or a little...

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