# rayleigh benard convection for a square cavity

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 February 25, 2016, 04:36 rayleigh benard convection for a square cavity #1 New Member   narayana vekamulla Join Date: Oct 2015 Posts: 15 Rep Power: 3 Good morning all, i am a mathematics research scholar , i need some results in rayleigh benard convection for a square cavity or 3d cavity just for comparison. the fluid consideration is air or water. for air i tried the following transport properties // Laminar kinematic viscosity nu nu [0 2 -1 0 0 0 0] 1.000000e-03; // Thermal expansion coefficient beta beta [0 0 0 -1 0 0 0] 1.019368e-03; // Reference temperature TRef TRef [0 0 0 1 0 0 0] 290; // Laminar Prandtl number Pr Pr [0 0 0 0 0 0 0] 0.7; //1.0000e+01; // Turbulent Prandtl number Prt Prt [0 0 0 0 0 0 0] 0.9; delta T=1 but i could not get steady state. Can anyone help me to get steady state ?

 April 6, 2016, 22:45 Your case is done? #2 Member   LT Join Date: Dec 2010 Posts: 43 Rep Power: 8 Hi, your case is done? And I wonder which solver in OpenFoam is used for this convection simulation?

 April 7, 2016, 03:08 Rayleigh benard convection #3 New Member   narayana vekamulla Join Date: Oct 2015 Posts: 15 Rep Power: 3 I am doing simulation for Natural convection using buoyantBoussinesqSimpleFoam and i got some results, please tell me how to plot Residual plots, pyFoamPlotRunner.py is not working ? can we use paraview to see Residual plots ? to find Nusselt number please tell me how to find derivative with respect to x and y in paraview ?

 April 9, 2016, 03:47 #4 Member   LT Join Date: Dec 2010 Posts: 43 Rep Power: 8 Would you mind to show your results if it does not bother you? And you want to show Residual or Nusselt plots?

 April 9, 2016, 03:48 #5 Member   LT Join Date: Dec 2010 Posts: 43 Rep Power: 8 Would you mind to show your results if it does not bother you? And you want to plot Residual or Nusselt plots?

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