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Mesh-Generation Parameters Influence on Centrifugal Compressor Simulation for Design Optimization

[+] Author Affiliations
Guillaume Dufour, Xavier Carbonneau, Jean-Bernard Cazalbou, Patrick Chassaing

ENSICA, Toulouse, France

Pierre Arbez

Liebherr Aerospace Toulouse SAS, Toulouse, France

Paper No. HT-FED2004-56314, pp. 609-617; 9 pages
doi:10.1115/HT-FED2004-56314
From:
  • ASME 2004 Heat Transfer/Fluids Engineering Summer Conference
  • Volume 2, Parts A and B
  • Charlotte, North Carolina, USA, July 11–15, 2004
  • Conference Sponsors: Heat Transfer Division and Fluids Engineering Division
  • ISBN: 0-7918-4691-1 | eISBN: 0-7918-3740-8
  • Copyright © 2004 by ASME

abstract

As advocated by Denton [1], three-dimensional CFD calculations are more and more used in the process of designing centrifugal compressors. Therefore, numerical accuracy is an issue if valuable design decisions are to be based on CFD results. This paper aims at correlating mesh-parameters and calculated flow quantities. The design-of-experiment method (DOE) is used to identify which mesh-parameters influence any given flow quantity. The emphasis is put on global performances (mass-flow rate, pressure-ratio and efficiency), and on local features (friction co-efficients and local velocity-profiles). The outcome of the study is the connection between mesh-parameters and specific flow-properties. This can be further used to derive numerical bench-marks, such as reported by Dufour et al. [2] for the tip-clearance flow.

Copyright © 2004 by ASME

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