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 › Problem with defining linear temprature in RayleighBernard2D example › Reply To: Problem with defining linear temprature in RayleighBernard2D example January 2, 2023 at 6:02 pm #7108 mathiasKeymaster Might be, is it small? Does it go to zero for h->0?