[panara]

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

U=cosh(y*sqrt(i*omega/nu))

where i=sqrt(-1)

Any idea on how to do that?

[niklas]

from beta...
z = x + iy
Re( cosh(z) ) = cosh(x)cos(y)

N

[henry]

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

OpenFOAM-1.1/src/randomProcesses

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.

[Ali Blues]

Given that the topic is on development and not preprocessing, the thread has been moved to:
Complex geometric fields