Moving Regions

This dialog is opened via Settings Menu.

In the Moving Regions dialog you specify moving regions and their velocity in time-dependent computation.

Moving regions dialog, Fixed Velocity 

Figure 30. Moving regions dialog, Fixed Velocity

Moving regions dialog, Variable Velocity 

Figure 31. Moving regions dialog, Variable Velocity

Item

Description

n region(s) selected

Shows how many regions are selected. If no region is selected, the moving parameters are disabled.

select all moving regions

Selects all regions, which you have already specified as a moving region. If you have not yet specified a moving region, no region will be selected.

Note

If you have defined moving regions with different parameters, a warning message is shown and No moving moving type is automatically selected.

Fixed velocity

The regions will move in time with a fixed velocity. The velocity components are given as parameters:

  • r-velocity (m/s):

  • z-velocity (m/s):

Variable velocity

Specifies that the regions' velocity will change in time. The velocity values are taken from an input file which contains the r and z-velocity at each desired time.

Parameters:

  • file name: specifies the input file containing the r and z-velocity in time

  • column: specifies the column number of r-velocity; next column must be of z-velocity.

    The first columns must be the time!

In order to get a velocity between the defined time steps, a stepwise interpolation is used.

Position profile

The regions will move in time by specifying their positions. The positions are computed based on the r and z-displacement at each desired time.

Parameters:

  • file name: specifies the input file containing the r and z-displacement in time

  • column: specifies the column number of r-displacement; next column must be of z-displacement.

    The first columns must be the time!

The linear interpolation is used in order to get a position between the defined time steps.

No moving

Specifies that selected regions will not move during the time-dependent computation.

Note

Non-moving regions which are connected to a moving region will change their form accordingly. To prevent neighboring regions from being affected, you can assign the label “Sliding” to the contact line, see Assigning labels.

Related Procedures

Moving Regions

Defining a moving region