- **OpenFOAM**
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- - **How to calculate turbulent shear stresses**
(*https://www.cfd-online.com/Forums/openfoam/106514-how-calculate-turbulent-shear-stresses.html*)

How to calculate turbulent shear stressesHello,
I am using OpenFoam to compute turbulent flows... I would like to calculate the turbulent shear stress, which is defined as u'v'=2*nut*Sij*Sij where nut is the turbulent kinematic viscosity, while Sij is, by definition, the derivative of velocity (Sij=DUi/DXj). The question is: How to say how to calculate the derivatives of velocity to OpenFoam?? Or, by the way, how to calculate any other value I need, besides pressure and velocity... THANK YOU! |

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