OpenLB – Open Source Lattice Boltzmann Code › Forums › on OpenLB › General Topics › PCM Simulation › Reply To: PCM Simulation September 26, 2022 at 1:10 pm #6830 mathiasKeymaster So, choose a smaller time interval for the output and consider to use much more core since you are in a real world setup. So maybe for 2D ~100 of cores and for 3D ~1000 or GPU clusters. Best Mathias