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 The information provided may be out of date.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.
Error function in geometry
Posted 29.03.2013, 12:39 GMT-4 Computational Fluid Dynamics (CFD), Geometry Version 4.3 1 Reply
Please login with a confirmed email address before reporting spam
Hello folks,
I wanna to draw "erfc" function as an upper border for my geometry.
Any idea ?
Thank you in advance!
I wanna to draw "erfc" function as an upper border for my geometry.
Any idea ?
Thank you in advance!
1 Reply Last Post 30.03.2013, 03:46 GMT-4
Please login with a confirmed email address before reporting spam
Posted:
1 decade ago
Hi
I agree that an integrated "erf" function/operator in COMSOL would be nice (even to use it as initial conditions !) but for some reason it's not in there (YOU HEAR US COMSOL DEVELOPPERS ? perhaps they will notice, I believe I suggested this already a few years ago ;)
I would say, to get around, you can call it in from matlab or make up a small 1D model in COMSOL and solve it since it's an ODE, no ?
But the easiest is probably to use one of the approximations readily available, see Wiki, or Eric Weisstein 's pages or "Abramowitz and Stegun"'s book or any of the others
--
Good luck
Ivar
I agree that an integrated "erf" function/operator in COMSOL would be nice (even to use it as initial conditions !) but for some reason it's not in there (YOU HEAR US COMSOL DEVELOPPERS ? perhaps they will notice, I believe I suggested this already a few years ago ;)
I would say, to get around, you can call it in from matlab or make up a small 1D model in COMSOL and solve it since it's an ODE, no ?
But the easiest is probably to use one of the approximations readily available, see Wiki, or Eric Weisstein 's pages or "Abramowitz and Stegun"'s book or any of the others
--
Good luck
Ivar