Applying Convection to the Coffee Surface You apply a convection boundary to the top faces of the coffee. To apply convection to the faces comprising the surface of the coffee: In the Simulation study tree, right-click the Thermal Loads folder and select Convection . In the graphics area, select the four faces constituting the surface of the coffee in the coffee pot. Set Units to English (IPS). Set the Convection Coefficient to 8.5e-6 (BTU/(sec.in2.°F)). Set the Bulk Ambient Temperature to 72 (°F). Click . Parent topicCoffee Heater with Thermostat Previous topic Applying Convection to the Outer Faces of the Coffee Pot Next topic Meshing the Model and Running the Study