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This LS-DYNA simulation shows a simple 3D ICFD problem. It features a flow through a cylindrical pipe. Since the Reynolds number is laminar, a parabolic profile is expected at the outlet. It makes use of the ICFD_CONTROL_SURFMESH keyword to remesh the original surface mesh. The purpose of the ICFD_CONTROL_MESH keyword is to have more elements through the cylinder's diameter. It is also a good example for the MESH_BL_SYM keyword. The user can comment that keyword to see its impact on the mesh close to the inlet or outlet.