OpenLB – Open Source Lattice Boltzmann Code › Forums › on OpenLB › General Topics › thermalconvecter:: conversionheatflux › Reply To: thermalconvecter:: conversionheatflux September 28, 2023 at 11:36 am #7763 FBukreevKeymaster Hello Mike, the heat flux in SI units is kg/s³. Your idea is to multiply the heat flux with the cell face area? Regards Fedor