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access solutions from COMSOL in MATLAB
Posted 1 juil. 2011, 12:56 UTC−4 Version 3.5a 1 Reply
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Hi,
I would like to run comsol in matlab, and save the solutions of some variables in matlab for further calculation. Take a plain strain model for example, I need the solutions of deformation (u, v) at certain bounday, that is (u,v) values at all mesh points, rather than an integration value. Also I do not want to save the solutions in a txt file and load them into matlab, because I need to do comsol script for 100 times in a loop that I cannot save them every time.
I am using comsol v3.5a and matlab 7.9.0.
many thanks for any help!
I would like to run comsol in matlab, and save the solutions of some variables in matlab for further calculation. Take a plain strain model for example, I need the solutions of deformation (u, v) at certain bounday, that is (u,v) values at all mesh points, rather than an integration value. Also I do not want to save the solutions in a txt file and load them into matlab, because I need to do comsol script for 100 times in a loop that I cannot save them every time.
I am using comsol v3.5a and matlab 7.9.0.
many thanks for any help!
1 Reply Last Post 4 juil. 2011, 13:06 UTC−4
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Posted:
1 decade ago
I have solved this problem using the command 'postinterp' thanks to some previous related discussion in this forum.
In case someone may need to solve similar problems, I attached an example code here.
px=linspace(0,1,101); % x coordinate
py=linspace(0,0,101); % y coordinate
p=[px;py]; % p gives coordinate of 100 points
[v]=postinterp(fem,'v',p); % v is the the values of variable 'v' in solution 'fem' at the 100 points
In case someone may need to solve similar problems, I attached an example code here.
px=linspace(0,1,101); % x coordinate
py=linspace(0,0,101); % y coordinate
p=[px;py]; % p gives coordinate of 100 points
[v]=postinterp(fem,'v',p); % v is the the values of variable 'v' in solution 'fem' at the 100 points