Updating meshes on deforming domains

Numerical results show that the proposed mesh optimization algorithm outperforms the existing mesh optimization algorithm in terms of improving the worst element quality and eliminating inverted elements on the mesh.It is well known that mesh qualities affect both the accuracy and efficiency of partial differential equation (PDE) solutions [1, 2].In fact, in the dynamic mesh events, there is option can manually define to replace the mesh in given time but I want to know can I use a UDF to do it automatically (i.e, load the new prepared geometry with new mesh each time step)?A general-purpose algorithm for mesh optimization via nodemovement, known as the Target-Matrix Paradigm, is introduced.Elements with poor mesh qualities (also, inverted elements) often occur during mesh generation [3], mesh deformation [4, 5], and mesh optimization [5].Researchers have proposed many mesh quality improvements and untangling algorithms to solve these problems [5–9].This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

If you are particularly interested in a specific problem for which the detailed documentation is incomplete, let us know – we might be able to give it a slightly higher priority.

We are happy to let you have driver codes before the documentation is complete.

Such codes usually need a bit of tidying to make them acceptable for "general release", but they are fully functional.

I add the deformed geometry(dg) physics and included in "step 1: stationary" along with solid mechanics. Best, Stacey Reply | Reply with Quote | Send private message | Report Abuse February 24, 2012 am UTC in response to Yemin Tang Re: How to use deformed mesh ?

I include the "prescribed deformation 1" in deformed geometry(dg) physics and set the prescribed mesh displacement as u, v, w. Then in "step 2: stationary", I include "electrostatic", but in the mesh selection, I can only select "Mesh 1" witch is the original mesh. Could you tell me how to setup the (dg)/(ale) itself and how to include them in the study step and include the deformed mesh? Hi I would suggest to try the following: start in 2D, once you understand the principoles fully you can go to 3D, then if you hve a top and bottom plate with some air in the middle and a pressure load on the top and bottom plate, while these are held fixed by the lateral edges, you will see the plate compress, and the average distance between the plates change.