How to differentiate and enter the value of kappa, kappamethod, kappaname in OpenFOAM

er_ijaz · March 23, 2020, 08:14

HI I understood Kappa means thermal conductivity but if I enter any value for it, simulation results in error before starting. So I have to use fluidthermo.
For Kappamethod, I have to chose fluidthermo or solidthermo. I understood depends on the material we have to chose fluidthermo or solidthermo. But I'm not sure how it computes the thermal conductivity value.
Also what is kappaname?

HosamAlrefaie · July 12, 2021, 06:23

same question, what is kappaMethod, and most importantly how to choose it?

also what is "value" in the code below? it is the value of what?

type externalWallHeatFluxTemperature;
mode coefficient;
Ta constant 303.0;
h constant 30;
thicknessLayers (0.04585);
kappaLayers (0.036);
kappaMethod directionalSolidThermo; //fluidThermo;
value $internalField;

March 23, 2020, 08:14	How to differentiate and enter the value of kappa, kappamethod, kappaname in OpenFOAM	#1
er_ijaz Member ijaz fazil Join Date: Apr 2013 Location: Singapore Posts: 73 Rep Power: 13	HI I understood Kappa means thermal conductivity but if I enter any value for it, simulation results in error before starting. So I have to use fluidthermo. For Kappamethod, I have to chose fluidthermo or solidthermo. I understood depends on the material we have to chose fluidthermo or solidthermo. But I'm not sure how it computes the thermal conductivity value. Also what is kappaname?

July 12, 2021, 06:23		#2
HosamAlrefaie New Member Hosam Alrefaie Join Date: Jul 2021 Posts: 24 Rep Power: 4	same question, what is kappaMethod, and most importantly how to choose it? also what is "value" in the code below? it is the value of what? type externalWallHeatFluxTemperature; mode coefficient; Ta constant 303.0; h constant 30; thicknessLayers (0.04585); kappaLayers (0.036); kappaMethod directionalSolidThermo; //fluidThermo; value $internalField;