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Swirl Angle Calculation

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Old   March 8, 2010, 07:57
Default Swirl Angle Calculation
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Can any one help me in finding the swirl angle in Ansys CFX Post ... before the fluid enters the impeller inlet ...
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Old   March 9, 2010, 19:04
Ali Torbaty
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use the following CEL expression to create a variable which represents the Swirl Angles in any plane.

SwAnglePlane = acos((Velocity u *Normal X + Velocity v * Normal Y + Velocity w *Normal Z)/Velocity)

Boundary Values = Conservative
Calculate Global Range = Off
Expression = SwAnglePlane
Recipe = Expression
Variable to Copy = Pressure
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