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Forum: Main CFD Forum

June 7, 2016, 18:53

Replies: 9

strategy to enhance of time steps

Views: 952

Posted By farazmardazad

No, i am using implicit formulation, because of...

No, i am using implicit formulation, because of pressure-based solver.

Forum: Main CFD Forum

June 7, 2016, 18:03

Replies: 9

strategy to enhance of time steps

Views: 952

Posted By farazmardazad

volume of tank =5 cubic meter number of mesh =...

volume of tank =5 cubic meter
number of mesh = 170000, but it's low
mass flow rate = 0.15 kg/s.

Forum: Main CFD Forum

June 7, 2016, 17:34

Replies: 9

strategy to enhance of time steps

Views: 952

Posted By farazmardazad

I use variable time step with courant number=2,...

I use variable time step with courant number=2, time step automatically change to near 10^-6. i simulate a big tank fill process that have about one hour filling time.

Forum: Main CFD Forum

June 6, 2016, 03:27

Replies: 9

strategy to enhance of time steps

Views: 952

Posted By farazmardazad

strategy to enhance of time steps

Hi all,
I try to simulate an unsteady multiphase issue with vof model, but time step size for continuity convergence is order of e^10-6, and flow time is about an hour, so i can't simulate it...

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