23.2.3.1.2. Particles

For every embedded particle solver that used in a co-simulation, there must also be at least one particle set. A particle set is a group of particles that all have the same radius, property groups, and color. After creating particle sets, it shows the ratio o the particle set volume to the volume of the selected geometry.

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Figure 23.38 Particle Set example

23.2.3.1.2.1. Modeling Options

The user can create a particles as follows.

  • Solid(Shell), WithDialog

    • Solid(Shell): Selects a solid or shell geometry.

    • WithDialog: Modifies the property list for the particle sets. The particle sets are created with clicking OK.

    ../_images/image06619.png

    Figure 23.39 Create Particle Set dialog

    • Name: Sets the name of particle set.

    • Radius: Sets the radius of the created particles.

    • Ratio: Sets the ratio of particle set.

    ../_images/image06717.png

    Figure 23.40 Ratio option

    • Color: Sets the color of particle set.

    • Parking Direction: Sets the direction of the created particles.

    ../_images/image06818.png

    Figure 23.41 Packing Direction option

    • Add: Adds a row.

    • Delete: Deletes a row.

  • MultiSolid, MultiSolid, WithDialog

    • MultiSolid: Selects multi solid geometries.

    • MultiSolid: Selects multi solid geometries.

    The First group of the geometries and the second group of the geometries are boolean united respectively. And the first united geometry is subtracted body the second united geometry. The subtracted geometry is packed with particles.

23.2.3.1.2.2. Message

After creating particle sets, it shows the following message.

Listing 23.1 Ratio of the particles to the geometry
The volume of the geometry : 195464627.695867
The volume of the particle sets (sphere) : 29474803.5695645
The ratio (sphere particle sets / geometry) : 15.08 (%)
The volume of the particle sets (cubic) : 56292728.217106
The ratio (cubic particle sets / geometry) : 28.8 (%)

23.2.3.1.2.3. Properties

The user can modify the properties of wall in the following dialog box.

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Figure 23.42 Particle Set property page

  • Number: The number of particles in the particle set.

  • Radius: The radius of the particle.

  • Graphic Property: The graphical properties of the particle set.

    ../_images/image07018.png

    Figure 23.43 Graphical Property dialog

  • Invisible: The flag of invisibility of particle set.

  • Program: The connected particle solver is shown. The user can choose to use this wall for a different particle solver.

  • Properties: The material properties of particle set.

    • Type: The type of the property group have to set.

    • Required: If the Required flag is Yes, then the specified property type element is required for particle sets. If it is No, then the specified property type element is optional for particle sets.

    • Name: The name of selected property group.

    • Prop.: The user can open the Property Groups dialog box by clicking the … buttons in the Prop. and also can set the property group using it.