Present paper is devoted to numerical investigation of unsteadiness caused by impeller-diffuser interaction in a 8:1 total pressure ratio centrifugal compressor. The compressor designed by CIAM [7], and manufactured and tested by Customer gave satisfactory performances even under the first test. Further development requires new insights and advanced numerical tools. In this context, this paper presents Navier-Stokes computations of 3D viscous unsteady flow field within the impeller-diffuser configuration. Steady and unsteady computations indicated spacious zone of low velocity / reverse flow on pressure surface of the diffuser vane. To suppress this reverse flow, new vaned diffuser has been tailored through application of 3D inverse design procedure for Navier-Stokes equations [8]. Subsequent steady and unsteady N-S calculations performed for compressor with the new diffuser demonstrated depression of reverse flow within diffuser and different unsteady loading of the diffuser vane.
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ASME 2005 Fluids Engineering Division Summer Meeting
June 19–23, 2005
Houston, Texas, USA
Conference Sponsors:
- Fluids Engineering Division
ISBN:
0-7918-4199-5
PROCEEDINGS PAPER
3D Viscous Inverse Design of Vaned Diffuser to Suppress Flow Unsteadiness in a Centrifugal Compressor
Victor I. Mileshin,
Victor I. Mileshin
Central Institute of Aviation Motors, Moscow, Russia
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Igor A. Brailko,
Igor A. Brailko
Central Institute of Aviation Motors, Moscow, Russia
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Andrew N. Startsev,
Andrew N. Startsev
Central Institute of Aviation Motors, Moscow, Russia
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Igor K. Orekhov
Igor K. Orekhov
Central Institute of Aviation Motors, Moscow, Russia
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Victor I. Mileshin
Central Institute of Aviation Motors, Moscow, Russia
Igor A. Brailko
Central Institute of Aviation Motors, Moscow, Russia
Andrew N. Startsev
Central Institute of Aviation Motors, Moscow, Russia
Igor K. Orekhov
Central Institute of Aviation Motors, Moscow, Russia
Paper No:
FEDSM2005-77335, pp. 161-168; 8 pages
Published Online:
October 13, 2008
Citation
Mileshin, VI, Brailko, IA, Startsev, AN, & Orekhov, IK. "3D Viscous Inverse Design of Vaned Diffuser to Suppress Flow Unsteadiness in a Centrifugal Compressor." Proceedings of the ASME 2005 Fluids Engineering Division Summer Meeting. Volume 2: Fora. Houston, Texas, USA. June 19–23, 2005. pp. 161-168. ASME. https://doi.org/10.1115/FEDSM2005-77335
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