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Time Dependent Solution
Posted Jan 30, 2010, 11:07 a.m. EST 1 Reply
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Hi Everyone,
I have one question regarding the time dependent solution. I want to export the time dependent problem into the Simulink and interface the "time" with simulink time. I am doing by writing a M-file in MATLAB with FEMLAB.
I want to divide the time in different interval of say: t=[0:1:10].
I want to simulate first from time t=0 to 1 & save the result to make the initial condition for the next simulation.
Then solve from t=1 to 2, with the initial condition of solution at t=1. And repeat the steps likewise.
I am looking for a good reference for solving the problem like this. Are there any example available which would help to understand the process ? I am doing this by scripting, not in COMSOL GUI because I have to interface this to Simulink by writing the Matlab function.
Please help me !!!
Thank you.
~Nirmal
I have one question regarding the time dependent solution. I want to export the time dependent problem into the Simulink and interface the "time" with simulink time. I am doing by writing a M-file in MATLAB with FEMLAB.
I want to divide the time in different interval of say: t=[0:1:10].
I want to simulate first from time t=0 to 1 & save the result to make the initial condition for the next simulation.
Then solve from t=1 to 2, with the initial condition of solution at t=1. And repeat the steps likewise.
I am looking for a good reference for solving the problem like this. Are there any example available which would help to understand the process ? I am doing this by scripting, not in COMSOL GUI because I have to interface this to Simulink by writing the Matlab function.
Please help me !!!
Thank you.
~Nirmal
1 Reply Last Post Jan 31, 2010, 8:34 a.m. EST
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Posted:
1 decade ago
Hi
This is not a direct reply, but it should help you to find your way out.
Typically in such situation, I repeat the sequence(s) in the COMSOL GUI (for your case try as sequences in the Solver Manager) and then I save the file and look at the "..._history.m" and sometimes too, save and look at the model as "m" file, there is a lot of info in there to understand how to handle the system with matlab
Good luck
Ivar
This is not a direct reply, but it should help you to find your way out.
Typically in such situation, I repeat the sequence(s) in the COMSOL GUI (for your case try as sequences in the Solver Manager) and then I save the file and look at the "..._history.m" and sometimes too, save and look at the model as "m" file, there is a lot of info in there to understand how to handle the system with matlab
Good luck
Ivar