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URGENT: How to mix solutions from previous iterations
Posted 20 giu 2016, 10:43 GMT-4 Version 4.3a, Version 4.3b, Version 4.4, Version 5.0, Version 5.1, Version 5.2, Version 5.2a 0 Replies
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First I solve one for u assuming u2=0.
Then I solve for u2 using the solution for u.
Then I mix the new solution for u2 with the one from the previous iteration (in the first step it was assumed u2=0.)
And the approach is repeated until convergence is reached.
How is the above most easily set up in COMSOL? I have set up a study with two steps. On for each of the differential equations. Then I make a for-loop statement in the solver and specify an appropriate number of iterations. The problem is how to call the solution for u2 from the current and previous iteration. I have looked at the ''Variables solved for/ not solved for'' tabs as on the attached picture. What should I put in these? And how do I tell the solver to use a zero solution for the very first iteration and then mix with the previous in the next?
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Hello August Mikkelsen
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