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.
Periodic Boundary conditions.
Posted 28.01.2013, 14:41 GMT-5 Modeling Tools & Definitions, Structural Mechanics 4 Replies
Please login with a confirmed email address before reporting spam
Hi, I’m trying to use periodic boundary conditions to implement asymptotic homogenization of solid mechanics in 2D. The problem is that I have to use periodic boundary conditions but in some cases, I need to add a displacement on one component.
Something like this:
u1-u2=cte
v1-v2=0 (this condition is the usual of periodic condition in comsol)
where u and v represent the displacement on x and y respectively and 1 and 2 the opposites sides of a square
Is there any way to do this using periodic boundary conditions or another one?
Regards
Agustin
Something like this:
u1-u2=cte
v1-v2=0 (this condition is the usual of periodic condition in comsol)
where u and v represent the displacement on x and y respectively and 1 and 2 the opposites sides of a square
Is there any way to do this using periodic boundary conditions or another one?
Regards
Agustin
4 Replies Last Post 22.06.2017, 10:29 GMT-4
Please login with a confirmed email address before reporting spam
Posted:
1 decade ago
H
you could try to turn on the equation view (preferences) and tweak the internal COMSOL formulas, but this usually needs some good testing and validation to be sure its correct and do not interfere with other items/variables
--
Good luck
Ivar
you could try to turn on the equation view (preferences) and tweak the internal COMSOL formulas, but this usually needs some good testing and validation to be sure its correct and do not interfere with other items/variables
--
Good luck
Ivar
Please login with a confirmed email address before reporting spam
Posted:
1 decade ago
Ivar, thanks for your rapid response. That seems to work.
Please login with a confirmed email address before reporting spam
Posted:
1 decade ago
It is working
Please login with a confirmed email address before reporting spam
Posted:
7 years ago
Hey
I set a Periodic boundary conditions (pressure : 1e2 Pa ) in the flow direction Y and my model is in microfluids domain to represent a fibrous layerd media using a representative volume elementary (unit cell ,a bloc ) in the other dirctions ( the last 4 faces ) i set 0 in the periodic boundary conditions . i set a normal meshing by defaut to test the convergence of the solution but no resulats there is every time an error plz help me !
I set a Periodic boundary conditions (pressure : 1e2 Pa ) in the flow direction Y and my model is in microfluids domain to represent a fibrous layerd media using a representative volume elementary (unit cell ,a bloc ) in the other dirctions ( the last 4 faces ) i set 0 in the periodic boundary conditions . i set a normal meshing by defaut to test the convergence of the solution but no resulats there is every time an error plz help me !