Ansys Learning Forum Forums Discuss Simulation Fluids ” ERROR #004100018, Fatal overflow in linear solver.” In Transient CFD. Reply To: ” ERROR #004100018, Fatal overflow in linear solver.” In Transient CFD.

Petros
Ansys Employee

Hi, there are some requirements regarding pitch ratio and number of stages to be modeled when using Time Transformation method. More details in the appropriate section of CFX-Solver Modeling Guide.

In case these are already satisfied in your setup, have you tried initializing the case with a well converged steady state solution?