Defining Lagrangian Phases
A Lagrangian phase is used to define the solid particles in the simulation. The phase requires specific models and properties to characterize its behavior. In this case, the solid particles are cylindrical tablets, with the material properties set by the user. In a later step, you define interactions between tablets and the mixer walls and between other tablets.
- Right-click the node and select .
- Rename the phase as tablet.
-
Right-click the
Select Models, and select the following models in order:
node, click
Group Box Model Particle Type DEM Particles Optional Particle Forces Deactivate Pressure Gradient Force (selected automatically) Particle Shape Cylindrical Particles Material Solid Equation of State Constant Density Optional Models Passive Scalar - Click Close.
- Expand the node.
- Select the Rubber node and rename it as tablet.
- Expand the node.
- Select the Constant node and set Value to 1100.0 kg/m^3.
- Right-click the New. node, and select
-
Rename the newly created
Passive Scalar sub-node
Spray Residence Time.
Note Although defined, the passive scalar remains inactive in this first phase of the tutorial.
A default boundary interaction is specified for all wall boundaries in the Lagrangian phase itself. For details, see the node
.