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OpenFoam and complex numbers

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Old   July 12, 2005, 05:38
Default Can OpenFoam handle fields of
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Daniele Panara
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Can OpenFoam handle fields of a complex scalar and relative complex algebra operations?

I would like to create an initialization field that consist of the real part of a complex function of the y coordinate of the field..

something like


where i=sqrt(-1)

Any idea on how to do that?
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Old   July 12, 2005, 05:48
Default from beta... z = x + iy Re(
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Niklas Nordin
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from beta...
z = x + iy
Re( cosh(z) ) = cosh(x)cos(y)

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Old   July 12, 2005, 05:52
Default Yes OpenFOAM supports complex
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Yes OpenFOAM supports complex numbers and fields of complex numbers but I don't think all the functions you might need are currently supported and GeometricComplexFields are not instantiated. dnsFoam uses complex numbers as part of the forcing-field creation which uses a random-UO process and FFTs. Take a look in


for uses of complexFields to create the random-UO process and the use of it in dnsFoam.

If you find that the functions you need are not implemented and you would like GeometricFields of complex numbers it won't be a great deal of work for you to add them.
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