This paper reports velocity measurement data in the interaction region between the impeller and vaned diffuser and the results of numerical flow simulation of the whole machine (impeller, vaned diffuser and volute) of a single stage centrifugal fan. Two-Dimensional instantaneous velocity measurement is done using particle image velocimetry (PIV). Numerical simulation of impeller-diffuser-volute interaction is performed using CFX-Tascflow commercial code. A frozen rotor simulation model is used for the steady calculation and a rotor-stator simulation model is used for the unsteady calculation using the steady results as an initial guess. The simulation results show that the separated flow regime near the diffuser hub extends to the volute. Comparison between the unsteady computation and those of measurement indicates that the Rotor/Stator Model employed in the simulation predicts essential characteristics of unsteady flow in the centrifugal fan. However, quantitative agreement remains rather poor.
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ASME Turbo Expo 2004: Power for Land, Sea, and Air
June 14–17, 2004
Vienna, Austria
Conference Sponsors:
- International Gas Turbine Institute
ISBN:
0-7918-4170-7
PROCEEDINGS PAPER
A Study of Impeller-Diffuser-Volute Interaction in a Centrifugal Fan
Tarek Meakhail,
Tarek Meakhail
Korea Advanced Institute of Science and Technology, Daejeon, Korea
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Seung O. Park
Seung O. Park
Korea Advanced Institute of Science and Technology, Daejeon, Korea
Search for other works by this author on:
Tarek Meakhail
Korea Advanced Institute of Science and Technology, Daejeon, Korea
Seung O. Park
Korea Advanced Institute of Science and Technology, Daejeon, Korea
Paper No:
GT2004-53068, pp. 687-695; 9 pages
Published Online:
November 24, 2008
Citation
Meakhail, T, & Park, SO. "A Study of Impeller-Diffuser-Volute Interaction in a Centrifugal Fan." Proceedings of the ASME Turbo Expo 2004: Power for Land, Sea, and Air. Volume 5: Turbo Expo 2004, Parts A and B. Vienna, Austria. June 14–17, 2004. pp. 687-695. ASME. https://doi.org/10.1115/GT2004-53068
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