Greetings all! After a great disappointment in that my fsi solver couldnt handle larger vibration due to lack of inertia response in the fluid creating undamped oscillation i am forced to abandon step-18.
I am wondering if anyone could advice me how to calculate the dynamic elastic solver, its continuation of step-18, instead of a quasi-static solution, i am planning to calculate rho*d/dt^2 + c*d/dt + div(C(eps(u))=f If the grid is the same between the timesteps, everything is alike step-23, easy task, but now using different grid, i am thinking of using Roths method, following the step-23, but the overlap between fe from different grid, is an obstacle i cannot pass due to the documentation of step-28 is a bit unclear for me. So am asking for how to solve the matrix elements from different timesteps in step-23. I would be gratefule for a snippet code or an article hint. Thank you! Best Regards Johan _______________________________________________
