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” ERROR #004100018, Fatal overflow in linear solver.” In Transient CFD.

- August 13, 2024 at 12:53 pm
  
  asustark700
  Subscriber
  
  Transient CFD Analysis of Rotor and Stator | Time Transformation | Ansys CFX
  Hi there,
  I'm trying to do a simulation of {impeller + diffuser} .
  1. The following image shows the Boundary conditions of the simulation:
  
  2. The following image shows the basisc setting of Transient blade row model of the simulation:
  
  but while processing the simulation it shows an error, as shown in Picture:
  Your efforts will be warmly appreciated.❤️
  cheap person 😁
- August 13, 2024 at 1:49 pm
  
  Petros Diakoumakos
  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?

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