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Unsteady Parabolic Field Function

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Old   March 19, 2013, 13:11
Post Unsteady Parabolic Field Function
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Hi there,

I'm using STAR CCM+ version 7 and I'm currently trying to write a field function to define the inlet velocity of a vessel.

Currently my inlet velocity is 0.00591m/s in a vessel of radius 0.00005m.
I have defined the following field function to implement a parabolic flow profile at the inlet using this information:

0.01182*(1-(pow($$Centroid[0],2)+(pow($$Centroid[1],2)+(pow($$Centroid[2],2))))/2e-09)

I wish to apply an unsteady parabolic flow profile at the inlet to the same vessel with a velocity of +/- 0.0019 m/s

Does anyone know how I would define the unsteady velocity in this field function or be able to point me in the right direction??

Cheers
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