[siamak1438]

No one answered to my previous post, I think it was vague and I have to explain more and I will appreciate if someone could answer it.
I am modelling the heart by the MRI data. For each time I have specific geometry which are extracted from the MRI. For instance for one heart beat the necessary frames (as well as the time steps) are about 100. So I have 100 times step and 100 associated geometries (it could say that each time steps' node positions are varying to the new position each time steps). (I draw simple model to understand) I think, I have to construct the CAD model of each time steps and load each as the new geometry at the end of each time step and remesh it. So, I want to know how can I do it. Is there any UDF to load the geometry (specially the surface or face) and change it to the new condition and then use the dynamic mesh to remesh it?
Yours,
Siamak

[ghost82]

Hi,
I'm not so expert but here are some advices..
I think this will not be simple at all..maybe you should start with a single geometry and modify that geometry with udf (DEFINE_GRID_MOTION?), so you will be able to update the positions of the nodes as a function of time.
All you have to do is to matematically express the movement of the nodes and write the udf.

Daniele