[Strajesko]

Hello everyone,

To work on suspension rheology, I use an homemade solver developed on the basis of icoFoam that was developped before me. So I had to take a closer look at what the solver was doing and I can't understand why the viscosity term is as follows:

fvm::laplacian(nu, U)

If I understand the documentation correctly (https://www.openfoam.com/documentati...laplacian.html), it corresponds to this term:



I don't quite understand why the transpose of the U divergence of the deformation tensor is missing.


Thanks in advance