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How to integrate a table result

Posted 30 gen 2013, 23:09 GMT-5 Results & Visualization Version 4.4 6 Replies

Daniel Lewis
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Hello,

I have calculated surface integrals for total flux over particular features in my geometry. This outputs a table of total flux in (mol/s) vs. time points. I would like to then be able to integrate this vs. time to output a table of total mol vs. s but I cannot figure out how to integrate table data. Thanks!
6 Replies Last Post 19 giu 2014, 06:56 GMT-4
Ivar KJELBERG COMSOL Multiphysics(r) fan, retired, former "Senior Expert" at CSEM SA (CH)
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Posted: 1 decade ago 31 gen 2013, 00:49 GMT-5
Hi

in the later versions (I do not believe it was in the early 4.0) you have table operations such as integration, sum, average ... on the columns

Else you must create your variable, even make a new global variable and integrate this way over the time (valid for time/transient solving)

--
Good luck
Ivar
Hi in the later versions (I do not believe it was in the early 4.0) you have table operations such as integration, sum, average ... on the columns Else you must create your variable, even make a new global variable and integrate this way over the time (valid for time/transient solving) -- Good luck Ivar
Daniel Lewis
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Posted: 1 decade ago 31 gen 2013, 00:54 GMT-5
Thanks! This helped.
Thanks! This helped.
Jeffrey Fong
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Posted: 1 decade ago 28 mar 2013, 03:23 GMT-4
Hi,

I created a Global Evaluation for Power as a function of time but when I try to use the Data Series Operation - Integral, I get an error message saying "Table input type 'Time' does not match data input type 'Stationary'. Try evaluating in another table." But the data set is from a Time dependent analysis, so what would I be missing here?

Thanks,
Jeffrey
Hi, I created a Global Evaluation for Power as a function of time but when I try to use the Data Series Operation - Integral, I get an error message saying "Table input type 'Time' does not match data input type 'Stationary'. Try evaluating in another table." But the data set is from a Time dependent analysis, so what would I be missing here? Thanks, Jeffrey
Ivar KJELBERG COMSOL Multiphysics(r) fan, retired, former "Senior Expert" at CSEM SA (CH)
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Posted: 1 decade ago 28 mar 2013, 13:04 GMT-4
Hi
Could it be the study pointer going to a wrong Data Set, or a leftover, sometimes its better to clear the table if it exist from before.

Or that you solution has not solved OK, in which case COMSOl is in default time series t=0 mode, and will go out of this state once the solver has finished in stationary (could also be a a "subversion 0" effect ;)

--
Good luck
Ivar
Hi Could it be the study pointer going to a wrong Data Set, or a leftover, sometimes its better to clear the table if it exist from before. Or that you solution has not solved OK, in which case COMSOl is in default time series t=0 mode, and will go out of this state once the solver has finished in stationary (could also be a a "subversion 0" effect ;) -- Good luck Ivar
Jeffrey Fong
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Posted: 1 decade ago 29 mar 2013, 16:36 GMT-4
Hi Ivar,

I deleted all previous solutions and it worked.

Thanks,
Jeffrey
Hi Ivar, I deleted all previous solutions and it worked. Thanks, Jeffrey
Giuseppe Mastrolembo
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Posted: 1 decade ago 19 giu 2014, 06:56 GMT-4
Hi Ivar
I have got a similar problem. I try to integrate the current density on a surface of my model but I get this message "Table input type 'Stationary' does not match data input type 'Time'. Try evaluating in another table". My solver is time dependent solver.
thank you for your help
Giuseppe
Hi Ivar I have got a similar problem. I try to integrate the current density on a surface of my model but I get this message "Table input type 'Stationary' does not match data input type 'Time'. Try evaluating in another table". My solver is time dependent solver. thank you for your help Giuseppe

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