Define Porous Domains

Use the Porous tool and its satellite icons to define Cartesian, cylindrical, and spherical porosity on solid bodies.

Define Cartesian Porous Media

  1. From the Flow ribbon, Porous tool group, click the Cartesian Porous Media tool.
    Figure 1.


  2. Select solids.
  3. Click Orientation on the guide bar.
  4. Position the porous media orientation in the following ways:
    • Left-click on the model body.
      Tip:
      • Use snap points to position the orientation on existing points, lines, surface centers, etc.
      • You can move the orientation point after its been placed by selecting a new point on the model.
    • Click in the microdialog to reposition the orientation point with precision using the Move tool. After moving, press Esc to return to the current tool.
    • Click in the microdialog to position the orientation using the Vector tool. Once the orientation has been defined, press Esc to return to the current tool.
  5. Define direction permeability in the following ways:
    • Enter values in the K1, K2, and K3 text boxes in the microdialog.
    • In the modeling window, click an arrow on the triad, enter a value, then press Esc.
    The triad is the same color as the global coordinate system. Based on that, you can map the direction number (X > 1m, Y > 2, Z > 3).
  6. Define the Darcy and Forchheimer coefficients in the following ways:
    • Enter values in the microdialog.
    • Click to calculate the coefficients using thickness, density, viscosity, and a velocity and pressure drop curve.
      Tip: Click Data and Fit below the plot area to toggle their visibility.
  7. From the guide bar, execute the command in the following ways:
    • Click to confirm your selection and remain in the tool.

      This allows you to continue creating instances and helps you visualize and edit instances with the legend.

    • Click to confirm your selection and exit the tool.

Define Cylindrical Porous Media

  1. From the Flow ribbon, Porous tool group, click the Cylindrical Porous Media tool.
    Figure 2.


  2. Select solids.
  3. Click Orientation on the guide bar.
  4. Position the porous media orientation in the following ways:
    • Left-click on the model body.
      Tip:
      • Use snap points to position the orientation on existing points, lines, surface centers, etc.
      • You can move the orientation point after its been placed by selecting a new point on the model.
    • Click in the microdialog to position the orientation using the Vector tool. Once the orientation has been defined, press Esc to return to the current tool.
  5. Define the Darcy and Forchheimer coefficients in the following ways:
    • Enter values in the microdialog.
    • Click to calculate the coefficients using thickness, density, viscosity, and a velocity and pressure drop curve.
      Tip: Click Data and Fit below the plot area to toggle their visibility.
  6. Enter radial, axial, and tangential permeability values in the microdialog.
  7. From the guide bar, execute the command in the following ways:
    • Click to confirm your selection and remain in the tool.

      This allows you to continue creating instances and helps you visualize and edit instances with the legend.

    • Click to confirm your selection and exit the tool.

Define Spherical Porous Media

  1. From the Flow ribbon, Porous tool group, click the Spherical Porous Media tool.
    Figure 3.


  2. Select solids.
  3. Click Orientation on the guide bar.
  4. Position the porous media orientation in the following ways:
    • Left-click on the model body.
      Tip:
      • Use snap points to position the orientation on existing points, lines, surface centers, etc.
      • You can move the orientation point after its been placed by selecting a new point on the model.
    • Click in the microdialog to reposition the orientation point with precision using the Move tool. After moving, press Esc to return to the current tool.
  5. Define the Darcy and Forchheimer coefficients in the following ways:
    • Enter values in the microdialog.
    • Click to calculate the coefficients using thickness, density, viscosity, and a velocity and pressure drop curve.
      Tip: Click Data and Fit below the plot area to toggle their visibility.
  6. Enter radial and tangential permeability values in the microdialog.
  7. From the guide bar, execute the command in the following ways:
    • Click to confirm your selection and remain in the tool.

      This allows you to continue creating instances and helps you visualize and edit instances with the legend.

    • Click to confirm your selection and exit the tool.