How Do I extract Mesh Nodal Coordinate data from ANSYS 18/19 workbench for use in MATLAB?

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Hauke Gravenkamp Popular answer

A straightforward way in Ansys Workbench is to create an "input file" (in the model select "solution" in the tree, click "tools"->Write input file). This file is basically a text file containing the coordinates of nodes and the connectivity which you can read into matlab. I can provide a Matlab script that reads the content of this file and extracts the coordinates and connectivity table as matlab arrays.

Yazdan Zare

Following command lists the elements and associated node numbers:

Utility Menu > List > Elements > Nodes + Attributes

You can save the data as a .lis file that may be open by any text editor. To find the coordinates of the node use following command:

Utility Menu > List > Nodes ...

You can match each node to its corresponding coordinate by a little effort in MatLab.

Hauke Gravenkamp

Andrew John Michalak

Ok I am definitely seeing that ANSYS is very flexible in this regards and that there are a lot of options for extracting the data. Does anyone have any specific recommendations if my end goal is to be able to alter my extracted geometry models/data in MATLAB and then re-upload them to ANSYS? (i.e. using MATLAB to alter/optimize the geometry models based on simulation results from FLUENT)

Hi Hauke, I have been able to get a handle on extracting/importing models using APDL input files as you've suggested a while ago and am now moving towards the process of trying to alter the model in MATLAB, do you think I could indeed get that Matlab script off you for extracting the nodel data?

Dear Dineshkumar Loganathan , I uploaded the Matlab file on file exchange:

https://de.mathworks.com/matlabcentral/fileexchange/80907-import-mesh-from-ansys

It's not super efficient and only for 2D meshes. Extending it to 3D should be trivial though. Let me know if that's helpful.