Note: This discussion is about an older version of the COMSOL Multiphysics® software. The information provided may be out of date.
Discussion Closed This discussion was created more than 6 months ago and has been closed. To start a new discussion with a link back to this one, click here.
COMSOL solver control
Posted Oct 15, 2012, 10:37 AM EDT Version 4.3a 5 Replies
I am looking at a problem that solves physics at two different time scales. Basically, I want to do the following
At a coarser time scale I want to solve a few partial differential equations (PDEs).
In each coarse time step, the source terms and some coefficients for these PDEs have to be determined by solving a few other PDEs with shorter time steps. The physics at the finer time scale will be solved for a few time steps and then eventually when the fine time scale agrees with the coarser time, the coefficients and source terms are updated. An algorithm will be
For CoarseTimeStep = 1 to n
for FinerTimeStep = 100 smaller time steps in each coarseTimeStep
solve PDE_SET_1 to get coefficients and source terms
Use these coefficients and source terms to solve PDE_SET_2
Can someone suggest if this is possible to do in comsol? If so, can you kindly point me to appropriate resources.