Hi, I want define an adiabatic inflow and outflow condition at velocity inlet and outflow boundarycondition of a 2-D domain respectively.I know that the adiabatic condition at the two sides can be set by making the gradient of temperature zero.But there is no options that are available with these boundary conditions.Moreover the face variables cannot have a gradient for temp(Thats what I have seen in UDF manual). Any suggestions, help would be greatly appreciated. -Srinivas

Hi, I think that you can see a very interesting book about thermodinamics, it´s Callen