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Stiff Chemistry Solver

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Old   June 17, 2004, 14:31
Default Stiff Chemistry Solver
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Arun
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Hi

Does anyone have any idea about the Stiff Chemistry Solver in Fluent? When I do Finite Rate Kinetics I have to use very low time steps. Does the Stiff Chemistry solver help me increase the timesteps?

Thank you in advance.

Arun
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Old   June 17, 2004, 18:05
Default Re: Stiff Chemistry Solver
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cg
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Fluent 6.1 has a stiff chemistry solver for the coupled implicit solver. Fluent 6.2 has a stiff chemistry solver for the segregated solver. This uses ISAT and would certainly be the preferred approach for low speed flows.
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Old   June 17, 2004, 20:45
Default Re: Stiff Chemistry Solver
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Arun
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Thanks for the information. Does preferred mean that it is not possible to do High speed flows (Mach >2)?
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