Due to recent bot attacks we have changed the sign-up process. If you want to participate in our forum please send a message via our contact form. › Forums › OpenLB › General Topics › Heat transfer liquid-solid and heat conduction in solids › Reply To: Heat transfer liquid-solid and heat conduction in solids July 19, 2023 at 12:42 pm #7636 FBukreevKeymaster Dear Jijo, if you have only 1 cuboid there will be only iC=0. Best regards Fedor