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[swak4Foam] Rigid body Rotation about an axis using groovyBC.

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Old   August 12, 2014, 17:41
Default Rigid body Rotation about an axis using groovyBC.
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Srinath Madhavan (a.k.a pUl|)
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Hi all,

Can someone provide an example for how to specify rotation (fixed RPM) of an arbitrarily shaped internal boundary about say the Y-axis?

Thanks for your help!
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Old   August 12, 2014, 18:30
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Originally Posted by msrinath80 View Post
Hi all,

Can someone provide an example for how to specify rotation (fixed RPM) of an arbitrarily shaped internal boundary about say the Y-axis?

Thanks for your help!
That'd be "f*(vector(0,1,0) ^ pos())" (^is the cross product in OpenFOAM/swak)

Calculating the scalar factor f is left to the reader as an exercise
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Old   August 12, 2014, 18:50
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Srinath Madhavan (a.k.a pUl|)
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haha, thanks Bernhard. That v = [omega] X [R] could be written with such simple abstraction in groovyBC is simply beautiful!
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Old   August 12, 2014, 20:20
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haha, thanks Bernhard. That v = [omega] X [R] could be written with such simple abstraction in groovyBC is simply beautiful!
You're welcome. As it is quite a frequent "pattern" consider writing a Usage Example at http://openfoamwiki.net/index.php/Co...Usage_examples
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