Learning Forum

[haibo]

When I use workbench for fluid-structure interaction, the transient structure reports an error: "An unknown error occurred during  solution. Check the Solver Output on the solution information for possible causes" , and no other errors are found, I find only one error in the file.err file, and the error in fluent is as follows: "Error : Invalid request method GetElementData for variable force", what could be the reason?

[Federico]

Hello, 

when does this error occur? Is it right at the start of system coupling run? Or later during the run?

[haibo]

This error occurs at the beginning of the coupling