Residuals in buoyantBoussinesqSimpleFoam
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Dear FOAMers,
I am simulating a (laminar) natural convection boundary layer in 2D with the above-named solver. So my domain has a uniformly heated wall at the left and atmospheric inlet and outlet conditions at the top, bottom and right respectivly. The domain is attached. The case is already running with the following BCs for T, U, p_rgh: 0/T Code:
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // Code:
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // Code:
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // But when I look at the residuals, they are oscillating (see attached picture). Normally they should fall due to given tolerances/ convergence criterions of 10^-08. The results are nearly the same for upwind and linear div-schemes. I appreciate any suggestion regarding this case. Best regards, Nico |
Residuals in BuoyantBoussinesqSimplefoam
Dear Nico,
Good evening i am doing natural convection using buoyantBoussinesqSimplefoam , please tell me how to plot residuals(convergence history). for a particular point (x,y), how to find maximum velocity. i used pyFoamPlotWatcher.py it is not working ? how to use foamLog in buoyantBoussinesqSimpleFoam ? Thank you |
Dear Nico,
Please post your fvSolution file, could it be that your solver tolerance is set at 1e-4 where you experience the noise? Best Regards, Karl |
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