The problem is:nnFor flow over flat plate:nIf there is a cube placed on bottom at say 10 meter from inlet, that at say, x=8 meter from inlet, boundary layer turns out to be 6-10 cm at various flow velocities (refer images on 19th Feb). However, if the cube does not exists, i.e. for usual flow on a flat plate case, the boundary layer becomes significantly smaller ~ 5 mm-2 cm (refer last image on 24th Feb).I am confused, How ? I am using same domain, same meshing, same model specifications.nn