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-   -   Spark ignition (http://www.cfd-online.com/Forums/star-cd/112735-spark-ignition.html)

lost.identity February 4, 2013 09:32

Spark ignition
 
Hi,


I'm trying to include spark ignition in my simulation. I am using my own reaction rate model (based on progress variable approach) and I have disabled Star-CD's reacting flow calculations.

What I would like to do is define a profile for the progress variable at the spark ignition region. This profile should go monotonously from 1 in the burnt side to 0 in the unburnt side.

I'm trying to do this in posdat.f but I have no clue to get the grid locations to define my spark region. I have grouped certain cells and given them a cell table number in prostar. I could set this to be 1, but the problem is then there is a sharp change from 1 to 0.

Any ideas?

Thanks!


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