Search Results

Showing results 1 to 4 of 4
Search took 0.00 seconds. Search: Posts Made By: FMDenaro

Forum: Main CFD Forum

November 8, 2016, 02:33

Replies: 8

Triggering turbulence in natural convection

Views: 1,029

Posted By FMDenaro

This would cause problems... The perturbation has...

This would cause problems... The perturbation has just the goal to force the onset of the turbulence, but it is a numerical perturbation (has not correlations like in real turbulence) therefore the...

Forum: Main CFD Forum

November 7, 2016, 07:17

Replies: 8

Triggering turbulence in natural convection

Views: 1,029

Posted By FMDenaro

yes, this issue is true but: 1) the noise has a...

yes, this issue is true but:
1) the noise has a very small amplitude
2) at t=0 you compute the pressure equation with a source term that take into account the perturbed field in order to get...

Forum: Main CFD Forum

October 26, 2016, 09:20

Replies: 8

Triggering turbulence in natural convection

Views: 1,029

Posted By FMDenaro

you should superimpose a disturbance to the...

you should superimpose a disturbance to the initial velocity field and let the BC.s unchanged... if the flow solution dumps the disturbance, it is likely you have too much dissipation (numerical or...

Forum: Main CFD Forum

October 26, 2016, 08:14

Replies: 8

Triggering turbulence in natural convection

Views: 1,029

Posted By FMDenaro

have you tried to superimpose a noise to the...

have you tried to superimpose a noise to the initial condition?

Showing results 1 to 4 of 4

Forum Jump

All times are GMT -4. The time now is 03:04.