StreamAnimation

  • Used to specify the Flowlines animation that are required to be generated by the application.

  • This is an optional section.

  • StreamAnimation of flowlines are supported.

  • User specifies the name of the Stream Animation and its properties.

  • Usage Example:

    * STREAM_ANIMATION
- "StreamAnimation1", SOURCE_COMP=BC-IN, TYPE=TUBE, TUBE_DIA=0.0025, RESULT=VELOCITY, NO_OF_LINES=500
- "StreamAnimation2", SOURCE_POINT="[-15,4,-20]", SOURCE_RAD=20, RESULT=CellRelativeVelocity, NO_OF_LINES=100, MAX_PROPAGATION=150, NO_OF_STEPS=200

Data Attributes

  • COMPONENT: Cell zone for which the flow line needs to be generated. By default, considers the whole model.

  • SOURCE_COMP: Starting point for the flow line. If Component name is specified, the flow lines starts from centroids of elements in the mentioned component.

  • SOURCE_POINT: Starting point for the flowline. If Component is not provided, user can provide a seed point for flowline generation. By default, if neither SOURCE_COMP nor SOURCE_POINT is provided, the seed point is considered as the center of the model.

  • TYPE: Type of the flow lines. LINE and TUBE are supported.

  • TUBE_DIA: Diameter of the flow line if Flow line type is TUBE.

  • RESULT: Result name for flow line generation. Valid result name should be provided.

  • NO_OF_LINES:Number flow of lines. By default, if component is specified, it considers all the centroids. If a point is specified 100 is default value.

  • MAX_PROPAGATION:Maximum length of a streamlines. Default values is 1.0

  • INITIAL_INTEGRATION_STEP:Initial step size used for integration. Default value is 0.2

  • MIN_INTEGRATION_STEP:Minimum step size used for line integration. Default value is 0.01

  • MAX_INTEGRATION_STEP:Maximum step size used for line integration. Default value is 0.1

  • NO_OF_STEPS: No of integrations time step intervals for Stream Animation.

  • INTEGRATION_STEP: Integration time step interval for Animation.

The quality of streamline integration can be controlled by setting the initial integration step, Minimum and Maximum integration step. The animation can be controlled by specifying the NO_OF_STEPS or INTEGRATION_STEP. Specifying one computes the other variable

Examples

Specifying Stream Aimation with Intergation time step at 0.01

* STREAM_ANIMATION
- "StreamAnimation1", SOURCE_COMP=BC-IN, TYPE=TUBE, TUBE_DIA=0.0025, RESULT=VELOCITY, NO_OF_LINES=500, INTEGRATION_STEP = 0.01

  • This creates stream animation starting from BC-IN component with 0.01 time step interval.

Please note that the execution time increases as the number of flow lines increases. Flowlines with NO_OF_LINES<250 is advisable.