Hi
I faced following error in comsol,in fsi simulation and time dependent
error is:
Failed to find consistent initial values.
Last time step is not converged
Feature: Time-Dependent Solver 1(soli/tl)
.................
my problem is bioprosthetic heart valve and boundry condition is pressure...
My problem will have coupling between fluid and solid
Pls help me
One can think of many reasons, but the first guess is that the problem has not been formulated adequately (ill-posed; I would recommend checking all the boundary conditions as a first step). For NS equation, this could also be related to a pressure point constraint. See here, if this helps-
https://www.comsol.com/community/forums/general/thread/54451/
Hello Amirhosein,
I concur with N.N. Misra; the problem is most likely ill-posed. Further to his link you may also want to look at this article by COMSOL:
https://www.comsol.com/blogs/improving-convergence-multiphysics-problems/
I've always found the following generic tips very useful:
http://evgeni.org/oldfish/Top_nine_hints_for_working_with_Comsol
Hope you manage to solve the issue - keep us updated.
Jules
Thanks Mr Hammond,thanks Mr Misra
I'd seen the comsol website But it was not useful and I did not understand what can be due to errors
Changes listed on the comsol forum did not work and not effective...
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