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.
Mass transport and moving mesh
Posted Feb 5, 2010, 4:17 p.m. EST 0 Replies
Please login with a confirmed email address before reporting spam
I am trying to simulate the mass transport inside a cylinder (transient analysis)
In particular there is a flow from the inlet to the outlet of the system and a reaction at the inner wall of the cylinder. Because of the reaction (enzymatic reaction) the wall moves toward the center of the cylinder.
To solve this system (half system due to the symmetry) I used the following equation:
Fluid flow --> incompressible Navier-Stokes equation
Mass transport --> Convection and Diffusion equation with Weak form boundary equation to take into account the reaction
Wall displacement --> Moving mesh, the wall velocity depends on the concentration on the wall.
I have some problems on the convergence, I am not able to get results if I solved all the equations. I tried to modify the mesh, change solver, but anything seems to work.
Thank you for your help,
Enrico
Attachments:
Hello Enrico Magrofuoco
Your Discussion has gone 30 days without a reply. If you still need help with COMSOL and have an on-subscription license, please visit our Support Center for help.
If you do not hold an on-subscription license, you may find an answer in another Discussion or in the Knowledge Base.