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two way coupling in comsol
Posted 2015年7月20日 GMT-4 06:48 Modeling Tools & Definitions, Parameters, Variables, & Functions Version 5.0 1 Reply
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Hi all,
I have two physics: 1 (Fluid flow, time dependent)+ 2( solute transport, time dependent).
My question: I need to solve the fluid flow model and then using velocity from this physics to another one which is solute transport.
Both of my studies are time dependent. how should I impose in comsol to say that solve the fluid flow model for t=t1,t2,t3,... and then solve the solute transport physics using the values from fluid flow model for t=t1,t2,t3,...?
I really appreciate your help in advance.
Sepideh
I have two physics: 1 (Fluid flow, time dependent)+ 2( solute transport, time dependent).
My question: I need to solve the fluid flow model and then using velocity from this physics to another one which is solute transport.
Both of my studies are time dependent. how should I impose in comsol to say that solve the fluid flow model for t=t1,t2,t3,... and then solve the solute transport physics using the values from fluid flow model for t=t1,t2,t3,...?
I really appreciate your help in advance.
Sepideh
1 Reply Last Post 2015年7月20日 GMT-4 07:05
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Posted:
9 years ago
Hi
normally you set that up in the segregated solver sub-nodes. That is COMSOL will probably propose a rather adequate setting by default, at least if you have the same t1,t2,t3 ... for both physics.
There is a possibility to fully decouple the two studies, you solve one (fluid) fully alone, and then manually link the second Physics time solver to read the default initial values from the first study. This is more tedious to set up than the case above.
Check the solver doc and how its done in some of the Model/Application library examples
--
Good luck
Ivar
normally you set that up in the segregated solver sub-nodes. That is COMSOL will probably propose a rather adequate setting by default, at least if you have the same t1,t2,t3 ... for both physics.
There is a possibility to fully decouple the two studies, you solve one (fluid) fully alone, and then manually link the second Physics time solver to read the default initial values from the first study. This is more tedious to set up than the case above.
Check the solver doc and how its done in some of the Model/Application library examples
--
Good luck
Ivar