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getting x,y-coordinate data
Posted 30 mai 2011, 08:08 UTC−4 2 Replies
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Hi,
In comsol 4.1 I am doing a time-dependent (PDE) study about the evaluation of dipole vortex. Now it is of interest to follow the trajectory of the dipole. Therefore I want the data of the x,y-position of the maximum and minimum vorticity of the dipole, to plot the trajectory eventually. To get those maxima and minima in the domain I selected the maximum and minimum option under Model Builder>Definitions>Model Couplings.
Although the program works with x and y coordinates, I cannot find a option in comsol to get those x,y data of the maxima and minima (at different times).
Is it possible to get x, y data of the maxima and minima?
Thanks in advance.
J. van Houwelingen
In comsol 4.1 I am doing a time-dependent (PDE) study about the evaluation of dipole vortex. Now it is of interest to follow the trajectory of the dipole. Therefore I want the data of the x,y-position of the maximum and minimum vorticity of the dipole, to plot the trajectory eventually. To get those maxima and minima in the domain I selected the maximum and minimum option under Model Builder>Definitions>Model Couplings.
Although the program works with x and y coordinates, I cannot find a option in comsol to get those x,y data of the maxima and minima (at different times).
Is it possible to get x, y data of the maxima and minima?
Thanks in advance.
J. van Houwelingen
2 Replies Last Post 31 mai 2011, 06:16 UTC−4
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Posted:
1 decade ago
Hi
yes indeed, the min() and max() have a second parameter call possibility (you need 2-3 calls one for each coordinate" check the FORUM with a search it's here somewhere. It's also in the help but slightly "hidden"
something like maxX = min(T,x) but I cannot remember 100% pls check
--
Good luck
Ivar
yes indeed, the min() and max() have a second parameter call possibility (you need 2-3 calls one for each coordinate" check the FORUM with a search it's here somewhere. It's also in the help but slightly "hidden"
something like maxX = min(T,x) but I cannot remember 100% pls check
--
Good luck
Ivar
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Posted:
1 decade ago
I've found how to do it.
If you want the x-position of a maximum (omega in my case) you have to use the following expression in a plot:
max(omega, x)
for the y-position it is:
max(omega, y)
Thanks a lot.
Josje
If you want the x-position of a maximum (omega in my case) you have to use the following expression in a plot:
max(omega, x)
for the y-position it is:
max(omega, y)
Thanks a lot.
Josje