I have tried searching a lot and it keeps giving this particular error again and again. Note; The Ram and disk space are not an issue. The convergence has taken place.
This error pops up once we try to update field after creating data transfers.
Not clear of what you are trying to do. Are you experiencing this during UDF programming and testing? What do you exactly mean with "...creating data transfer"? Data transfer from where to where? And in which location in your Fluent setup?
An exception is usually thrown, if a programmed code is accessing a pointer, which is either not set with a proper value or which is pointing not to a formerly allocated piece of memory (write access to memory; read access is usually harmless but nevertheless erroneous). An exception can be thrown as well by attempting the square root from a negative number, division by zero and so forth...
Regards,
Th. Frank.
Thank you for your response.
I am trying to generate water waves and impacting it on a structure. I am not using UDF but the inbuilt wave maker in Ansys fluent.
I am using the "system coupling" feature in Ansys with Transient structure and Fluent as participants. The coupling begins and I get to see msg in solution information console as "coupling iteration 1" and its details like transient has converged and fluent has not.
After this, the status remains the same for 1 hour of performance and in the progress bar it shows that the run is "0 % complete". If I abort at this stage, it takes a while for the process and message is displayed as "solver failure occurred in the fluent system" and "update failed for solution component in system coupling, fluent threw an exception"
I am unable to understand why the system is not progressing with the iterations.
Are you doing two Way Fluid Structure Interaction .I believe system coupling option is for 2-way interaction.
please let me know what settings you are using for the fluid solver. It is issue with fluent solver converge (force convergence).
Thanks
Vishnu
any chance you are accidentally triggering either a divide by zero or using an illegal character (ex alpha in a numerical field) ?
A question in order to narrow down the issue:
Are you able to run first (before doing system coupling) a transient Fluent simulation with the wave generator with a static structure, i.e. without coupling fluid dynamics and structural mechanics together? Have you tried this already in order to verify your Fluent setup?
Regards,
Th. Frank.
I am sorry for the extreme delay in response.
Thank you for your insights and questions everyone. The problem was solved. The error was pretty strange. It did not allow for defining new material.
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