Specify Manual Settings

Allows you to specify the Global Mesh of a Manual type. The mesh is controlled by the set of parameters specified under Basic Mesh of the Global Mesh Settings dialog and other parameters that governs the splitting the basic mesh cells.

Procedure

  1. In the Global Mesh Settings dialog, under Type, select the Manual .
  2. Under the Basic Mesh, define the following settings of the Basic Mesh (Global Mesh):

    • Number of Cells Per X  / Size of Cells Per X , Number of Cells Per Y  / Size of Cells Per Y , Number of Cells Per Z  / Size of Cells Per Z . Depending on the selected mode, specify the numbers (or sizes) of basic mesh cells in X-, Y-, and Z-directions of the Global Coordinate System.

      As a result, the basic mesh will be constructed by dividing the Computational Domain into slices by basic mesh planes, which are orthogonal to the Global Coordinate System’s axes. By default, the basic mesh planes will be arranged as nearly uniform in the Global Coordinate System’s directions.

    • Switch to Size/Number of Cells Per X, Y, Z  the numbers or sizes of basic mesh cells in each coordinate direction.

    • Keep Aspect Ratio. When checked, this option allows to fix the ratio between the numbers of basic mesh cells in each coordinate direction.

    • Show. Allows you to see the obtained basic mesh immediately on the model.

      When this option is checked, the Show Cell Size tool becomes available (see “Show Cell Size” for details).

      Tip

      To access the Show basic mesh box from the Ribbons, click Tools > Flow Simulation > Mesh > Show basic mesh.

    • Click Control Planes if you want to rearrange the basic mesh planes and to stretch or contract the basic mesh cells locally.The Control Planes pane appears at the bottom of the screen (see “Control Planes” for details).

    See “Basic Mesh” for details.

  3. Under Refining Cells, you can specify settings to refine the cells of a specific type.

    You can specify the refinement of the combination of fluid cells, and/or solid cells, and/or solid-fluid boundary cells (see “Refine Cells by Type” for details).

  4. Under Channels, you can define “narrow channels” and specify the parameters governing the initial mesh in the channels.

    If the model includes narrow channels, which are important from the project viewpoint, it is expedient to additionally split the initial mesh in narrow channels in order to calculate flows in the channels more accurately (see “Channels Resolution” for details).

  5. Under Advanced Refinement, you can specify mesh settings for resolving the relatively small solid features and the boundary between substances.

    To specify the advanced refinement settings, select the Advanced Refinement check box and then specify the required parameters (see “Resolve the Interface Between Substances” for details).

  6. Under Close Thin Slots you can specify the size of the model’s flow passages that you want to fill with a solid material.

    Maximum Height of Slots to Close . Allows you to specify the Maximum Height of Slots to Close value to fill slots which height is less than the specified value with the Solid closest to the slot.

  7. Under Display Refinement Level you can display the mesh corresponding to the specified refinement settings (see “Display Refinement Level” for details).
    Note:

    Note, that the specified refinement settings do not influence the constructed mesh. These settings allows to visualize the refined mesh only.

  8. Click OK  to apply changes and close the dialog.
Parent Topic: Manual Settings for Global Mesh