{"id":164914,"date":"2023-03-17T08:58:59","date_gmt":"2023-03-17T08:58:59","guid":{"rendered":"\/knowledge\/forums\/topic\/solver-monitor-error-about-unrecognized-turbulent-function-error-cell_function_values-unrecognized-function-production\/"},"modified":"2023-07-31T12:26:32","modified_gmt":"2023-07-31T12:26:32","slug":"solver-monitor-error-about-unrecognized-turbulent-function-error-cell_function_values-unrecognized-function-production","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/solver-monitor-error-about-unrecognized-turbulent-function-error-cell_function_values-unrecognized-function-production\/","title":{"rendered":"Solver\/Monitor error about unrecognized turbulent function: Error: Cell_Function_Values: unrecognized function: production"},"content":{"rendered":"

When model changes are made, like switching from one turbulence model to another which is using different transport equations\/parameters, and when monitors of model specific parameters have been defined, the solver will give an error similar to this: Error: Cell_Function_Values: unrecognized function: production or primitive error: unrecognized function: turbulent This is due to the solution monitors, which no longer have access to the model parameter like turbulent parameters used by the previous turbulence model. Check in the Solution->Monitor menu whether any of your surface or volume monitors are using undefined parameters. If so, change the parameter to one in the drop-down list, which is refreshed once the model has been changed.<\/p>\n","protected":false},"template":"","class_list":["post-164914","topic","type-topic","status-publish","hentry","topic-tag-fluent","topic-tag-fluid-dynamics","topic-tag-general-fluent","topic-tag-other"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t