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Help with implementing variable flow conditions

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Old   July 25, 2014, 03:41
Default Help with implementing variable flow conditions
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nilesh
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Hi,
I am trying to compute a flow wherein the mach number, angle of attack, freestream pressure, freestream temperature and reynolds number are a function of time.

I have a quadratic function for the variation and I am aware that this can be achieved by getting the value of the current iteration using config->GetExtIter().

However I do not understand where exactly to change these values (which subroutine/class and line number) as there could be multiple places.
I am using the following boundary conditions:
Farfield and no-slip wall.
Flow: NS equations without turbulence modeling, without mesh movement.
Numerical scheme HLLC (possibly with preconditioner)

I am also having difficulty understanding how the function GetCharacPrimVar(val_marker, iVertex) works.

Kindly help me with the above problems.
Thanks.
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boundary conditions, unsteady, varying velocity


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