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1 TASK Quarterly : scientific bulletin of Academic Computer Centre in Gdansk

1 2002

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3D multistage computations of turbine flows using different state equations

Rusanov A. V., Yershov S., Lampart P., Świrdyczuk J., Gardzielewicz A.

TASK Quarterly : scientific bulletin of Academic Computer Centre in Gdansk

2002

Vol. 6, No 4

591-600

The paper describes the implementation of a modified state equation for perfect gas and Tammann equation into a 3D RANS solver FlowER. In the modification the specific heats are assumed as linear functions of temperature. A 5-stage LP steam turbine stage is calculated, and the comparison of results for constant and variable specific heats is illustrated. The modification significantly improves the correctness of determination of thermodynamic parameters in the entire flow region, especially in the exit stage.