OpenLB – Open Source Lattice Boltzmann Code › Forums › on OpenLB › General Topics › Problem with defining linear temprature in RayleighBernard2D example › Reply To: Problem with defining linear temprature in RayleighBernard2D example January 1, 2023 at 8:36 pm #7100 mathiasKeymaster Did you set the values in lattice units? The unitConverter can help you here.