Numerical Analysis of Internal Flow Field in an Impeller with the Time Marching Method

Abstract:

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Centrifugal compressors are power machineries used widely. Fully understanding of the complex three-dimensional flow field is very important to design higher pressure ratio, higher efficiency centrifugal compressor. In this paper, time marching method is adopted to solve the three-dimensional viscous N-S equations under the relative coordinate system. The internal flow field of the “full controllable vortex” high speed centrifugal impeller is analyzed and the medial velocity vector distribution and the development of the velocity of each section in the impeller are showed. From the figures, it can be seen that the “wake” phenomenon, such as Ecckart described, caused by the curvature, Coriolis force and the boundary layer is exist

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Periodical:

Edited by:

Xuejun Zhou

Pages:

1476-1480

DOI:

10.4028/www.scientific.net/AMM.94-96.1476

Citation:

C. H. Wang "Numerical Analysis of Internal Flow Field in an Impeller with the Time Marching Method", Applied Mechanics and Materials, Vols. 94-96, pp. 1476-1480, 2011

Online since:

September 2011

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$35.00

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