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Centrifugal compressor of a 100 kW microturbine: Part 2 - Numerical study of impeller-diffuser interaction
Department of Mechanical Engineering, University of Padova.
2003 (Engelska)Ingår i: Proceedings of the ASME Turbo Expo 2003: presented at the 2003 ASME Turbo Expo, June 16 - 19, 2003, Atlanta, Georgia, New York: American Society of Mechanical Engineers , 2003, Vol. 3 : Cycle innovations. Marine. Manufacturing materials and metallurgy. Microturbines and small turbomachinery, s. 699-705Konferensbidrag, Publicerat paper (Refereegranskat)
Abstract [en]

The interaction between impeller and diffuser blades in high-speed centrifugal compressors is thought to have a significant influence on the flow within the diffuser. In this part, Computational Fluid Dynamics is exploited to simulate, visualize and analyze the complex flow generated by the interaction, with particular emphasis on the unsteady behavior of the vaned diffuser of the microturbine compressor studied in part 1. For this purpose, the 3D geometry of the compressor stage is studied by performing a fully unsteady simulation of rotor-stator interaction. The results of the unsteady calculation regarding the diffuser performance are then averaged in time and compared with those obtained with a fully steady and decoupled computation in order to highlight the main difference between the two approaches.

Ort, förlag, år, upplaga, sidor
New York: American Society of Mechanical Engineers , 2003. Vol. 3 : Cycle innovations. Marine. Manufacturing materials and metallurgy. Microturbines and small turbomachinery, s. 699-705
Identifikatorer
URN: urn:nbn:se:ltu:diva-29768DOI: 10.1115/GT2003-38153Lokalt ID: 3579d02e-536a-4d03-876b-7216efbb2e30ISBN: 0-7918-3686-X (tryckt)OAI: oai:DiVA.org:ltu-29768DiVA, id: diva2:1002994
Konferens
ASME Turbo Expo 2003 : 16/06/2003 - 19/06/2003
Anmärkning
Upprättat; 2012; 20120620 (andbra)Tillgänglig från: 2016-09-30 Skapad: 2016-09-30 Senast uppdaterad: 2017-11-25Bibliografiskt granskad

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