Note: This discussion is about an older version of the COMSOL Multiphysics® software. The information provided may be out of date.
Discussion Closed This discussion was created more than 6 months ago and has been closed. To start a new discussion with a link back to this one, click here.
measuring outflow of a species
Posted 2012年6月11日 GMT-4 22:15 Version 4.2a 1 Reply
Please login with a confirmed email address before reporting spam
I am trying to measure the number of electrons that exit a diode in order to determine current. I am using outflow as a boundary condition from transport of diluted species. How to I measure the outflow?
1 Reply Last Post 2012年6月13日 GMT-4 05:31
Please login with a confirmed email address before reporting spam
Posted:
1 decade ago
Hi,
See attachment for a 2D. I have not tried this.
Go to Results, Derived values, Select line average, choose data set (solution 1 or whatever), select which time you want, in selection, click manual, select the boundary across which you want to compute flux, under expression select normal convective flux.
If you want boundary integrated flux, then instead of average choose "integration", "line integration" assuming 2D.
Suresh
See attachment for a 2D. I have not tried this.
Go to Results, Derived values, Select line average, choose data set (solution 1 or whatever), select which time you want, in selection, click manual, select the boundary across which you want to compute flux, under expression select normal convective flux.
If you want boundary integrated flux, then instead of average choose "integration", "line integration" assuming 2D.
Suresh
Attachments: