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#1 |
Senior Member
Daniele Panara
Join Date: Mar 2009
Posts: 101
Rep Power: 17 ![]() |
Dear all,
I am using rhoTurbFoam for a pulsating channel application. The case consists of a heated pulsating air channel. If I start my computations directly using rhoTurbFoam the solver needs a really small time step in order to reach a stable solution. In order to obtain a faster solution I tought to initialize the field with a solution from turbFoam on the same cold pulsating channel. After the turbFoam case reached the convergence, I added the temperature field and tried to run the case under rhoTurbFoam. The dimension for the pressure and phi were wrong and I simply changed them... The calculation was anyway unstable and I got very soon nan values. did I make a mistake? Is that the right way to initialize the turbulent field from turbFoam to rhoTurbFoam? The flow is incompressible ( very low mach number ) and the problem is of forced-convection type.. (not strong buoyance effects). Is rhoTurbFoam the right solver? how can I improve its stability? any advice will be apreciated, regards, Daniele |
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