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How to compute the second derivative of pressure |
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December 11, 2008, 00:33 |
Hi All,
I would like comput
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#1 |
Senior Member
Senthil Kabilan
Join Date: Mar 2009
Posts: 113
Rep Power: 17 |
Hi All,
I would like compute the second derivative of p with respect to x, y and z and also impose a boundary condition that the second derivative of p wrt the normal direction is zero at the outlets. Where should I start? Anyone solved a similar problem? Any help will be very much appreciated. Thanks all in advance! Senthil |
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December 22, 2008, 16:53 |
volScalarField dpdx = fvc:grad
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#2 |
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Heng Xiao
Join Date: Mar 2009
Location: Zurich, Switzerland
Posts: 58
Rep Power: 17 |
volScalarField dpdx = fvc:grad(p);
volScalarField dp2dxx = fvc:grad(dpdx); Would that work? Not tried. I computed gradient of p only. |
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