Learning Forum

[s213bell]

Hello,nnWe are using ansys 2021r1 and when we try to upload .cas.h5 files it loads for a second then we get a popup that says ansys workbench has stopped working. How can we resolve this crashing when trying to upload a file.n

[Rob]

Are there any errors reported in Fluent? n

[s213bell]

we just get a popup that says ansys workbench has stopped working. A problem caused the program to stop working correctly windows will close the program.n

[Rob]

And if you open Fluent and try to read in the file? n

[YasserSelima]

This happened with me before and I found that the issue was a UDF that I hooked on reading the file. The problem was solved by removing the udflib folder and removing the source code from its location. And the case was loaded successfully with error of not finding the library. nIf you are using UDF, delete the folder and change the source code directory and try again. n

[s213bell]

Client said I usually open up Fluent > Set up > File > Import > Case&Data is that what you mean Arrayn

[s213bell]

I am not sure what udf is but i looked through the installation directory and couldn't really find anything. Where would it be?n

[s213bell]

I found the udf folder but can't find a udflib folder. I have asked the client if this is something they use.n

[Rob]

The UDF would be a libudf (default name) in the same folder as the case and data files. Can you ask your user to open Fluent from the Start menu? If there is no icon they need the fluent.exe file that's in nC:\Program Files\ANSYS Inc\v211\fluenttbin\win64\fluent.exenassuming they didn't do anything clever during installation. Is the file that's failing from 2021R1 or an earlier release? n

[s213bell]

I have asked what release the file is from. I am guessing it is from an earlier release since they have been working on this project for awhile but I will clarify. When opening fluent directly and opening the file this is the error. Unable to open | utility fl42seg X:/UNC_003NC_PrismMesh_4Mcells.cas.h5 for reading.: iostream stream errorn

[Rob]

That may be more useful. Is the X: drive local or network/USB drive?n

[s213bell]

It is a network drive. All users use the network drive as we restrict them from using the cdrive on the machines.n

[Rob]

Network drive on Windows I take it. I wonder if it's latency/packet loss related then. We see this every few years as the cases get bigger and drive/network speeds increase: depending which is the winner the model may or may not load. Will smaller files load OK?.

[s213bell]

It is a very small file listed at 0kbn

[s213bell]

and we have other users uploading bigger files. It is just ones that are .cas.h5 that aren't working it seems.n

[s213bell]

I also just tried uploading the file from the desktop and same errorn

[YasserSelima]

0 kb .. so probably the file is corrupted n