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32.3.23 Define/Dynamic Mesh/Events...

The Define/Dynamic Mesh/Events... menu item opens the Dynamic Mesh Events panel.



Dynamic Mesh Events Panel


The Dynamic Mesh Events panel is available only for in-cylinder models. You can use the in-cylinder events to control the timing of specific events during the course of the simulation. See Section  11.7.4 for details.

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Controls

Number of Events   specifies the number of events to be defined.

On   enables the corresponding event.

Name   specifies the name of the event.

At Crank Angle   specifies the angular location of the crank at which the event should occur. This option appears for in-cylinder flows.

At time   specifies the time (in seconds) at which you want the event to occur. This option appears for non-in-cylinder flows.

Define...   opens the Define Event panel.

Read...   opens the Select File panel (see Section  2.1.2).

Write...   opens the Select File panel (see Section  2.1.2).

Preview...   opens the Events Preview panel.



Define Event Panel

The Define Event panel allows you to define the in-cylinder events.

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Controls

Name   contains the name of the event to be defined.

Type   specifies the type of in-cylinder event. You can choose the type of event from the drop-down list. These event types and their definitions are described in Section  11.7.4.

Definition   contains the input parameters corresponding to the type of event selected under Type.
Zone   contains a selectable list of the zones. The selection specifies the name of the zone(s) to be changed. This item will appear only for the Change Zone Type event.

New Zone Type   specifies the type of zone that an existing zone needs to be changed to. This item will appear only for the Change Zone Type event.

From Zone   specifies the name of the zone from which the boundary condition is to be copied. This item will appear only for the Copy Zone BC event.

To Zone(s)   specifies the name of the zone to which the boundary condition is to be copied. This item will appear only for the Copy Zone BC event.

Interface Name   contains the name of the interface to be created or deleted. This item will appear only for the Create Sliding Interface and Delete Sliding Interface events.

Interface Zone 1, Interface Zone 2   specifies the two zones on either side of the interface to be created. This item will appear only for the Create Sliding Interface event.

Wall 1 Motion, Wall 2 Motion   specifies the dynamic zones whose motion can be copied for the zones specified under Interface Zone 1 and Interface Zone 2. This item will appear only for the Create Sliding Interface event.

Attribute   allows you to select the relevant motion attribute. This item will appear only for the Change Motion Attribute event.

Status   allows you to enable or disable the motion attribute. This item will appear only for the Change Motion Attribute event.

Dynamic Zones   contains a list of dynamic zones. This item will appear only for the Change Motion Attribute event.

Crank Angle Step Size   specifies the new physical time step value in degrees. This item will appear only for the Change Time Step Size event.

Base Dynamic Zone   specifies the zone from which the layer of cells is to be created. This item will appear only for the Insert Boundary Layer and Remove Boundary Layer event.

Side Dynamic Zone   represents the deforming face zone adjacent to the Base Dynamic Zone before the layer is inserted. This item will appear only for the Insert Boundary Layer event.

Internal Zone 1 Name, Internal Zone 2 Name   specifies the name of the new internal zones.

Time Step Size   allows you to change the time step size of the event. This item will appear only for the Change Time Step Size event.

Change Under-Relaxation Factors   allows you to specify the under-relaxation factors for the selected event. This item will appear only for the Change Under-Relaxation Factors event. See Section  25.9.2 for details.

Adjacent Dynamic Face Zone   allows you to select the dynamic face zone adjascent to the location of the cell layer to be inserted (or deleted). You can select the required zone from the drop-down list.

Direction Parameter   is the direction with respect to the selected dynamic face zone a layer of cells is removed or added.



Events Preview Panel

The Define Event panel allows you to play the events to check that they are defined correctly.

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Controls

Start Crank Angle   specifies the crank angle at which you want to start the preview (for in-cylinder flows).

Start Time   specifies the time at which you want to start the preview (for non-in-cylinder flows).

End Crank Angle   specifies the crank angle at which you want to end the preview (for in-cylinder flows).

End Time   specifies the time at which you want to end the preview (for non-in-cylinder flows).

Increment   specifies the size of the step to take during the preview.

Preview   plays back the events at the crank angle specified for each event and reports when each event occurs in the text (console) window.


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