How can I calculate Vorticity (or any vector quantity) in cylindrical components in CFX-Post?



Some quantities, such as Velocity, can be generated automatically in cylindrical components by CFX-Post from the Turbo tab. For other vector quantities, such as Vorticity, you can create the expressions and new variables manually. Using Vorticity as an example the expressions are:

LIBRARY:
CEL:
EXPRESSIONS:
theta = atan2(y, x)
VorticityAxial = Vorticity Z
VorticityRadial = cos(theta) * Vorticity X + sin(theta) * Vorticity Y
VorticityTheta = -sin(theta) * Vorticity X + cos(theta) * Vorticity Y
END
END
END

You can then create new variables based on these expressions.





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