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ABAQUS/CFD Results in EXODUS-II Format

Hi,

I have been working on solving a coupled fluid-structure problem in ABAQUS/CFD and ABAQUS/Standard for a while now. Due to the high flexibility of the solid, I have not been able to solve the coupled problem correctly. So, to advance in my research and get some preliminary results, I am looking at solving a one-way coupled problem. (IE, I will solve the fluid problem and obtain surface tractions at various times. Then, I will apply these tractions to my solid model.)

According to the ABAQUS manual, ABAQUS/CFD results are sent either to the ODB or can be written to an EXODUS-II file. I believe it will be best to write the results to the EXODUS-II file and use a subroutine to read the tractions into ABAQUS/Standard. Because I have no prior experience with the EXODUS-II format, I am a little perplexed. I found a document from Sandia which outlines the basics of EXODUS-II, but it is pretty vague. Does anyone have experience using the EXODUS-II generated in ABAQUS, and if so, can you point toward some sources and possible example codes of how to read the ABAQUS results when written in this format?

Thanks,

Caleb

Caleb,

The short answer to your question is "Look at the exoduxII plugin for ParaView". ParaView is a visualization program developed at Sandia that has some pretty awesome functionality. Here's a link to the part of their website where they discuss their simple exodusII format:

http://www.paraview.org/ParaView3/Doc/Nightly/www/py-doc/paraview.simple...

It looks like you might have to download the paraview source to find the exodusII reader code to compare. However, I am a developer for a single element driver written in python and we have an exodusII reader/writer. You can find it here:

https://github.com/tjfulle/matmodlab/blob/master/femlib/fileio/exodus.py

That being said, I cannot possibly conceive of a reason to go away from the native .ODB format of Abaqus. As someone that's worked with home-brewed exodusII readers/writers as well as Abaqus' built-in ODB python module, I cannot fathom why you would want to read it in from exodus.

Good luck!

Hi!

Thank you so much for your help. Fortunately, I found a way not to have to go through the exodus-ii file. I found a way to output my results in the form of x-y data from the ODB. Thanks again!

 

Caleb

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