FlowLines

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

  • This is an optional section.

  • Flowlines with lines and tubes are supported.

  • User specifies the name of the flowlines and its properties.

  • Usage Example:

    * FLOWLINES
- "Flowline1", SOURCE_COMP=BC-IN, TYPE=TUBE, TUBE_DIA=0.0025, RESULT=VELOCITY, NO_OF_LINES=500z
- "Flowline2", SOURCE_COMP="FORWARD SIDE OF INTERFACE W_INJECTOR*", TYPE=TUBE, TUBE_DIA=0.0025, RESULT=VELOCITY, NO_OF_LINES=200
- "Flowline3", CONPONENT="ZONE_1" ,SOURCE_COMP="*W_INJECTOR*", TYPE=TUBE, TUBE_DIA=0.0025, RESULT=VELOCITY, NO_OF_LINES=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

The quality of streamline integration can be controlled by setting the initial integration step, Minimum and Maximum integration step.

Examples

Specifying Flowlines of type TUBE

* FLOWLINES
- "Flowline1", SOURCE_COMP=BC-IN, TYPE=TUBE, TUBE_DIA=0.0025, RESULT=VELOCITY, NO_OF_LINES=3500

  • This creates Flowlines as “Flowline1” starting from BC-IN component.

  • This flowtubes have Diameter of 0.0025 and number of flowtubes are 3500.

../../../../../../_images/flow_tubes2.jpg

Specifying Flowlines of type LINE

* FLOWLINES
- "fl1", SOURCE_COMP=BC-IN, TYPE=LINE, RESULT=VELOCITY

  • This creates flowlines of type LINE starting from BC-IN component.

  • This feature is specified as “fl1”.

../../../../../../_images/flow_lines2.jpg

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