OpenLB – Open Source Lattice Boltzmann Code › Forums › on OpenLB › General Topics › I can’t run bstep2d › Reply To: I can’t run bstep2d September 29, 2020 at 11:29 pm #5183 SouhailaParticipant Thank you for your response, i checked and i found a file recently generated named bstep2d.d, is that the executable needed? thank you