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ziemowitzima February 15, 2013 14:39

how to calculate mixed derivative
 
Dear Foamers,
Is there any way to compute second order mixed derivatives ?

But different than using twice grad operator ?

Thanks !
ZMM

ziemowitzima February 15, 2013 15:03

e.g.
could mixed derivative as:
\frac{\partial^2 f}{\partial x \partial y}
be calculated using fvc::laplacian method, as follows:
HTML Code:

nu = (0 1 0 0 0 0 0 0 0 );
fvc::laplacian(nu,f)

??

It does something, but I am not sure what ...

Thanks
ZMM


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