Dear all,
i am conducting hydrodynamical simulations with OpenFOAM. As to my knowledge OpenFOAM uses implementation of the Dirichlet condition, called fixedValue, and the Neumann boundary condition, called fixedGradient.
For a publication I am required to give quotes proving that the fixedValue is indeed a Dirichlet and the fixedGradient a Neumann condition.
Question: Can you name few good sources, that discribe the implementation of the Neumann and Dirichlet boundary condition in OpenFOAM?