Symmetry

Analysis > Symmetry

Symmetry boundary condition can be used if the expected flow pattern of developed solution is mirrored along that surface. This boundary condition applies zero flux across the plane and zero shear stress along the plane.

This panel is used to define the Symmetry boundary condition for fluid flow problems. Symmetry boundary condition can be applied on faces/face groups of volume meshed bodies.

Description

  • Select faces

    The faces to which the symmetry boundary condition needs to be prescribed is selected using Select faces option.

  • Surface Output

    Surface Output specifies the output parameters for a boundary face.

    • Integrated output frequency

      Time step frequency at which the integrated surface quantities are output. If zero, this option is ignored.

    • Integrated output time interval

      Time frequency at which the integrated surface quantities are output. If zero, this option is ignored.

    • Statistics output frequency

      Time step frequency at which the statistics of surface nodal quantities are output. If zero, this option is ignored.

    • Statistics output time interval

      Time frequency at which the statistics of surface nodal quantities are output. If zero, this option is ignored.

    • Nodal output frequency

      Time step frequency at which the surface quantities at the nodes of the surface are output. If zero, this option is ignored.

    • Nodal output time interval

      Time frequency at which the surface quantities at the nodes of the surface are output. If zero, this option is ignored.

    • Number of saved states

      Number of solution steps to retain on the disk. If zero, all the solution steps are retained.