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vorticity - mulitphase flow

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Old   March 19, 2022, 14:17
Default vorticity - mulitphase flow
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Hello everyone,

I am trying to calculate the vorticity for a two-phase flow, however the post processing function is designed for single phase, can someone advise how I can use it for a two phase flow?

postProcess -func vorticity

I get the error cannot find U fields, which is true because i have U.air and U.water

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Old   March 24, 2022, 08:28
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Haven't tested it though but something like this in your controlDict should work

 type vorticity;
 libs ("");
 writeControl timeStep;
 writeInterval 100;
 U U.air;

 type vorticity;
 libs ("");
 writeControl timeStep;
 writeInterval 100;
 U U.water;
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openf, postprocessing, vorticity

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