OpenLB – Open Source Lattice Boltzmann Code › Forums › on OpenLB › General Topics › Incomplete indicator shape › Reply To: Incomplete indicator shape December 29, 2021 at 10:26 am #6228 AdrianKeymaster Does the shape move towards what you expect if you increase the resolution (Set as deltaX in the unit converter)? Note that the problem could also be the discretization used by the heatmap writer. How does the raw VTK output look?