OpenLB – Open Source Lattice Boltzmann Code › Forums › on OpenLB › General Topics › WallShearStress2D Functor › Reply To: WallShearStress2D Functor June 13, 2022 at 8:19 am #6637 jjessbergerParticipant Dear Sahil, Could you please provide additional information: was it a compilation failure or a runtime error? What was the error message? How are the arguments NSlattice etc. of your function call defined? Yours, Julius