| Author | Message | ||
     Liem Peng Hong (liemph) Member Username: liemph Post Number: 7 Registered: 09-2004 |
Dear Members, I am not quite sure how to use Flexpde in a correct way to solve a time dependent heat conduction problem, where the domain (volume) is changing with time due to void formation. The void formation is a result of chemical reaction which strongly depends on the temperature. I read that in version 5 there is a new feature for including mesh movement or something similar. Could this be the solution ? Any hints and comment are welcome ! Thank you. Liem PH | ||
| Robert G. Nelson (rgnelson) Moderator Username: rgnelson Post Number: 453 Registered: 06-2003 |
FlexPDE version 5 allows you to declare moving boundaries. You can define the motion explicitly, or compute it from local conditions. The mesh must remain connected, we do not yet support slip surfaces. Download the version 5 demonstration version and look at the example problems in "Samples | Moving_Mesh", especially "2D_Position_blob.pde". Also review the documentation under "Moving Mesh" in the Help Index. You might also solve your problem in version 4 using a "state variable" approach as we have done in the example "Samples | Time_Dependent | Chemistry | Melting.pde". |