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Solver for Laminar incompressible transient flow

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Old   March 23, 2014, 23:48
Question Solver for Laminar incompressible transient flow
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Tom
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Hello!

I am looking for a solver to simulate a transient case of Incompressible laminar flow, involving heat transfer. Is a single fluid.

So far I know, the heat transfer solvers only works with turbulent flow. I have tryed with bouyantBoussinesqPimpleFoam solver, but it doesn't wrote any result of temperature, instead wrote just the results of pressure an velocity.

I appreciate any help! Thanks
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Old   March 24, 2014, 04:34
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Alexey Matveichev
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Hello,

you have to be more specific (describe case, post case files). I've used bouyantBoussinesqPimpleFoam for this kind of flow and everything was fine.
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Old   March 24, 2014, 16:05
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The mesh is the pitzDaily which you can find in many OpenFOAM tutorials cases, like $FOAM_RUN/tutorials/incompressible/pisoFoam/les
or
$FOAM_RUN/tutorials/incompressible/simpleFoam/

The rest of the files are attached, just copy and paste the polyMesh file (pitzDaily) and that is exactly my case.
Attached Files
File Type: zip LaminarHeat.zip (12.9 KB, 2 views)
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Old   March 24, 2014, 16:34
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Alexey Matveichev
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Well,

I don't know what did you mean by "but it doesn't wrote any result of temperature" but...

1. You're using transient solver with constant time step and again constant number of outer correctors. Usually it leads to anything but correct results.

2. I've modified fvSolution (see attached file), so it will use residuals to exit outer corrector loop (during the first time step there is around 90 outer corrector iterations but this number quickly falls to 2 iterations).

3. (This has nothing to do with convergence) I've also changed controlDict to save frequently maybe you'll need to change it back.

Or maybe you just did not checked T field while importing results to Paraview.
Attached Files
File Type: gz LaminarHeatTransfer.tar.gz (3.4 KB, 2 views)
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Old   March 24, 2014, 23:51
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I'm sorry for not check the temperature results in the files and make waste your time.

By the way, I have tried to work with Helyx-OS 2.0.1 with incompressible, laminar, transient and heat transfer. However it seems to exist a limit for the kinematic viscosity, because for values higher than 0.0018 the Processing always crash.

Like happened with the viscosity of the current case (nu = 0.3675). That's why I ran the case with just OpenFOAM and not with Helyx-OS

Thanks you!
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heat tranfer laminar, incompressible fluid, laminar, transient flow

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