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How to change equation during a transient solution in V4.3

Posted Dec 4, 2012, 9:48 a.m. EST Chemical Reaction Engineering Version 4.3a 2 Replies

Piyaporn Sriniang
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Hello everybody,

I am simulating a transient solution by using transport of dilute species. I would like to change the equation during a transient solution and use the initial value of simulation 2 from last time step of simulation 1, please help me.

The methodology I use is :
1. I run simulation 1 with the equation 1, 3, 4, 5 and 6
2. I run simulation 2 with the equation 2, 3, 4, 5 and 6

How to do it ?

Thank you very much.
Piyaporn


2 Replies Last Post Dec 4, 2012, 2:35 p.m. EST
Ivar KJELBERG COMSOL Multiphysics(r) fan, retired, former "Senior Expert" at CSEM SA (CH)
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Posted: 1 decade ago Dec 4, 2012, 2:01 p.m. EST
Hi

check the doc on the solvers, and the tabs for solver initial values ("Values of Dependent variables"), and get those of study 2 to point to study 1

or if both sequences are under the same study1, then get step2 to point to step1

Then use the step tab "Physics and Variables" selection to disable enable the desired BCs
--
Good luck
Ivar
Hi check the doc on the solvers, and the tabs for solver initial values ("Values of Dependent variables"), and get those of study 2 to point to study 1 or if both sequences are under the same study1, then get step2 to point to step1 Then use the step tab "Physics and Variables" selection to disable enable the desired BCs -- Good luck Ivar
Piyaporn Sriniang
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Posted: 1 decade ago Dec 4, 2012, 2:35 p.m. EST
Thank you very much Ivar

Thank you very much Ivar

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