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udf plasma model

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Old   November 5, 2019, 18:12
Default udf plasma model
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iyad
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Hi all

i want to apply Shyy and Jayaraman's plasma model actuator on leading edge i dont know how to identify that plasma region in the udf for the equation E=E0-K1x-k2Y. note that the plasma region is a triangular

Can someone please tell me how to set a specific point for the applied plasma model? Or atleast locate the exact position of the applied plasma model in the udf thanks

Last edited by pitch; November 7, 2019 at 10:08.
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Old   November 7, 2019, 03:47
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Alexander
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if you want to get help on UDF! You should specify exactly your problem.
As for me, I don't have time and don't really want to go through papers to find out what do you mean

make sketch, show the code you have, explain problems
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Old   November 7, 2019, 06:49
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thank you for reply
to calculate the electric field E need values X and Y for the formula
so the meshes nodes in traingale AOB are indexed by element

C_UDMI(c,t,E)=E0-k1*x-k2*y;
C_UDMI(c,t,Ex)=C_UDMI(c,t,E)*k2/sqrt(k1*k1+k2*k2);
C_UDMI(c,t,Ey)=C_UDMI(c,t,E)*k1/sqrt(k1*k1+k2*k2);

so my question is how to impose on the mesh variables the zone where there is plasma...and how to index that zoneCapture.JPG
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