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32.3.7 Define/Models/Species/Spark Ignition...

The Define/Models/Species/Spark Ignition... menu item opens the Spark Ignition Model panel. See Section  19.1 for details of the items listed below.



Spark Ignition Model Panel


The Spark Ignition Model panel allows you to set the parameters related to spark ignition model. To activate the Spark Ignition model, the transient calculation must be selected in the Solver panel and in the Species Model panel, select Species Transport under Model and enable Volumetric under Reactions.

figure

Controls
Model   contains the available spark ignition models.

Off   disables spark ignition model

Fixed Spark Size   enables the spark ignition calculations using fixed spark size model.

Time-Varying Spark Radius   enables the spark ignition calculations using time varying spark radius.

Shape   contains the different shapes of the spark. This option is available only for Fixed Spark Size model
Hex   enables hex shape spark.

Sphere   enables spherical shape spark.

Cylinder   enables cylindrical shape spark.

Shape Parameters   contains the parameters needed to define the shape and size of the spark.
X, Y, and Z-Center   specifies the points in x, y, and z direction.

X, Y, and Z-Length   specifies the length in x, y, and z direction.

Initial Radius   specifies the initial spark radius.

Final Radius   specifies the final spark radius.

Model Parameters   contains the parameters needed to define the spark.
Energy   contains the total energy input by the spark.

Start Time   is the time of spark ignition initialization.

Duration   is the duration of the spark ignition.

Diffusion Time   is the spark diffusion time in seconds.

Select Points with Mouse   allows to select the shape parameters of the spherical spark using mouse.


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