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Forum: Main CFD Forum

October 26, 2016, 09:22

Replies: 8

Triggering turbulence in natural convection

Views: 1,027

Posted By agustinvo

Thanks! Should I add a disturbance in my...

Thanks! Should I add a disturbance in my temperature field too (since it is a buoyant driven flow)?

I am using a second order upwind for my divergence schemes, but I can move to a centered scheme,...

Forum: Main CFD Forum

October 26, 2016, 09:13

Replies: 8

Triggering turbulence in natural convection

Views: 1,027

Posted By agustinvo

I I tried before, but since my incoming flow...

I

I tried before, but since my incoming flow has a constant temperature, it dissapear quickly. However, I can try to play a bit with it.

I was thinking to use a fluctuating heat flux q_w(t) in...

Forum: Main CFD Forum

October 26, 2016, 05:53

Replies: 8

Triggering turbulence in natural convection

Views: 1,027

Posted By agustinvo

Triggering turbulence in natural convection

Hello

my question is referred to the triggering of turbulence in LES and DNS in natural convection.

It is widely studied how to trigger it in forced convection (like sinthetic turbulence,...

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