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Parametric study - adjusting lift and drag direction vectors

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Old   April 25, 2019, 11:18
Default Parametric study - adjusting lift and drag direction vectors
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Clarice du Plessis
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I'm modeling an airfoil at various angles of attack with a parametric study. The inlet velocity direction vector is the input parameters and the output parameters are drag and lift coefficients.
When I change the angle of the inlet velocity, I want to change the drag and lift coefficient direction vectors accordingly, but unfortunately I can't use parameters in Fluent to specify the new direction vectors.
Can anyone please suggest a workaround to this? Can a UDF accept a parameter value as input?
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Old   April 25, 2019, 12:13
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Lucky
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UDF's can access and look at parameters.

Monitors have to be redefined when you want to change the axis. Even if you could reference a parameter to do this (and I think you can use a parameter in the definition), you still need a line in your journal somewhere that defines the axis. Parameters work as an on-demand pass-by-value, not a one-time symbolic link or pass-by-reference where you can set-it-and-forget-it.
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lift and drag calculation, parameter, parameterization, parametric study, udf

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