CFD Online Discussion Forums - laplacian(rAU, p) == fvc::div(phiHbyA)?

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- - laplacian(rAU, p) == fvc::div(phiHbyA)? (https://www.cfd-online.com/Forums/openfoam-programming-development/120352-laplacian-rau-p-fvc-div-phihbya.html)

sharonyue

July 4, 2013 20:28

laplacian(rAU, p) == fvc::div(phiHbyA)?

2 Attachment(s)

Hi,

In icoFoam's code, we have:

Code:

fvScalarMatrix pEqn

                (

                    fvm::laplacian(rAU, p) == fvc::div(phiHbyA)

                );

Why its not div(HbyA) as of the equation in the image?

This equation is deduced by myself. If it was wrong just correct me.

santiagomarquezd

July 5, 2013 08:16

Check chapter 2.7 in my PhD thesis, the link to it is provided in my user page at openfoamwiki.net: http://openfoamwiki.net/index.php/User:Santiagomarquezd

Regards.

sharonyue

July 7, 2013 20:20

I figure this out, after I get $\nabla u=0$ , I should make an integration first instead of substitution of u.

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