Hi,
i am trying to write the following equation in FEniCs Code as a variational problem:
The Equation describes the orientation of fibers in manufacturing processes like injection modelling. The difficulty hereby, among others, is the formulation of the fourth order tensor O(4).
My approach is to incorporate the mesh and the solution of the balance equations (Mass, Impulse tec) of the Navier Stokes Channel Simulation from the FEniCs Tutorial in a new separate code for the upper equation.
I am completely new to FEM and Python Programming and i have some struggle defining the boundary conditions and the variational problem.
Wondering if anyone has worked with this topic before or has an advice on how to continue.
Best regards and thanks in advance.