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Search: Posts Made By: alimea
Forum: OpenFOAM December 11, 2017, 03:10
Replies: 52
Views: 39,443
Posted By alimea
calculating forces

Hi all
I saw in forces code that shear stress is calculated by:

shear stress = - mu*gama

in code:
-rho()*nu*dev(twoSymm(fvc::grad(U)))

what is the minus in this formula?
Now I want to...
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