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Remeshing
Posted Oct 28, 2011, 1:52 a.m. EDT 1 Reply
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Hi everybody! :)
I'm quite new on COMSOL, and I have to simulate a huge problem: How the gas expand in a gun suppressor?
I am having a lot of trouble regarding the moving bullet, which is very important in the function of the suppressor. So I will probably need to use the Deformed Geometry module to make the bullet travel in it, and I will also need to remesh many times, because the mesh is very modified after a little time.
So, what I have done is: I made the bullet move with a "Prescribed mesh Velocity" on a little time where the mesh is not too much modified, and then I create a new mesh and use it to continue the simulation, but an horrible error occure: "Duplicate Variable Name" T.T
Could anybody tell me how to fixe that? I also tried the Automatic Remeshing, but it does not work at all... same problem.
For now I am just trying to make a circle move in a rectangle with DG and remesh it to learn how the remeshing works, without good results...
Thank you very much for your help. I am particularly stucked...
Remy
I'm quite new on COMSOL, and I have to simulate a huge problem: How the gas expand in a gun suppressor?
I am having a lot of trouble regarding the moving bullet, which is very important in the function of the suppressor. So I will probably need to use the Deformed Geometry module to make the bullet travel in it, and I will also need to remesh many times, because the mesh is very modified after a little time.
So, what I have done is: I made the bullet move with a "Prescribed mesh Velocity" on a little time where the mesh is not too much modified, and then I create a new mesh and use it to continue the simulation, but an horrible error occure: "Duplicate Variable Name" T.T
Could anybody tell me how to fixe that? I also tried the Automatic Remeshing, but it does not work at all... same problem.
For now I am just trying to make a circle move in a rectangle with DG and remesh it to learn how the remeshing works, without good results...
Thank you very much for your help. I am particularly stucked...
Remy
1 Reply Last Post Oct 28, 2011, 3:03 a.m. EDT
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Posted:
1 decade ago
Hi
there are many tricks and things to apply, (not my speciality) but I remember I learned a lot by following the normal and advanced meshing courses of COMSOL (its a days per item). If you jump stright into such a complex task, I can only recommend that you find ut if you can follow one of those, you will find the info on the main sote for all over the worlds
COMSOL could perhaps set up web training days for those really far off
--
Good luck
Ivar
there are many tricks and things to apply, (not my speciality) but I remember I learned a lot by following the normal and advanced meshing courses of COMSOL (its a days per item). If you jump stright into such a complex task, I can only recommend that you find ut if you can follow one of those, you will find the info on the main sote for all over the worlds
COMSOL could perhaps set up web training days for those really far off
--
Good luck
Ivar