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dialysis
Posted 19 nov 2012, 12:50 GMT-5 Studies & Solvers Version 4.3 0 Replies
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I have got the attached model on dialysis process at COMSOL site. I have some questions regarding the solver. As you can see, under the "Stationary Solver 1" there are two nodes- Fully Coupled and Direct. As mentioned in the COMSOL Dynamic Help section that Fully Coupled uses the damped version of Newton's method and it uses damping factor to solve equation. Also under the Fully Coupled node, at method and termination, it suggests that it is Non-linear method. I am just wondering isn't in Newton's Method there is supposed to be an initial guess and then it iterates? I mean, here all I can see is damping factors for different cases. So how does it work?
There is also Direct node which according to the Dynamic help is used for linear systems. It uses the algorithm of MUMPS.
So actually which part of my simulation is solved by Fully Coupled and which part is solved by Direct node?
Thanks,
Md Shihamul Islam
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Hello Md Shihamul Islam
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