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TransAT Tutorial Manual            2.1. Block Mesh Refinement: Flow over Cylinder (Re=150)



                   • Click

               The boundary conditions must now be assigned to the corresponding boundary surfaces. An
               inflow will be defined at the X min boundary, and an outflow will be defined at the X max. The
               remaining boundaries will be defined as symmetry conditions.

               To proceed with the assignment of boundary conditions to surfaces,

                   • Select X Min in the drop-down list and select the surface Xmin0 in the surface list below.
                   • Select the Inflow boundary condition by ticking the light grey square next to it in the list
                     of boundary conditions.

                   • Click    to apply the boundary condition to the Xmin0 surface.

                   • Select X Max in the drop-down list and select the surface Xmax0 in the surface list.

                   • Select Outflow boundary condition by ticking the light grey square next to it in the list of
                     boundary conditions.

                   • Click    to apply the boundary condition to the Xmax0 surface.

                   • Select All Surfaces in the Boundary drop-down list and select the symmetry boundary con-
                     dition in the list of boundary conditions.

                   • To assign all the remaining surfaces at once, press the Ctrl key while selecting the surfaces
                     that have not been assigned to a boundary condition in the surface list (they appear in
                     black in the list).

                   • Click    to apply the boundary condition to the selected surfaces.



























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Ascomp AG Switzerland                    43                                   Version 5.7
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