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Improvement of 3D Full-Potential Method and Computation of Flowfield of CAS Compressor Rotor PUBLIC ACCESS

[+] Author Affiliations
Zhang Jialin

Chinese Academy of Sciences, Beijing, China

Paper No. 89-GT-17, pp. V001T01A008; 9 pages
doi:10.1115/89-GT-17
From:
  • ASME 1989 International Gas Turbine and Aeroengine Congress and Exposition
  • Volume 1: Turbomachinery
  • Toronto, Ontario, Canada, June 4–8, 1989
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 978-0-7918-7913-9
  • Copyright © 1989 by ASME

abstract

The present study is aimed at improving the 3D (three-dimensional) full-potential method for solving the 3D flowfield in turbomachines. The improvement made is in two areas. First, a flow loss has been simulated with the entropy distribution along streamlines and introduced into the solution for gas density. Second, the viscous effect of the flow near boundaries has been modeled with a displacement thickness distribution of the boundary layers along the hub, the shroud, the blade surfaces, and the vortex sheets in the wakes of blades and introduced into the computation of the 3D flowfield. Since this improved 3D full-potential method incorporated some effects in the real flow in turbomachines, it can be applied to some complicated engineering problems with satisfactory results. In the present work, the improved 3D full-potential method has been used to compute the 3D flowfield in the compressor rotor of CAS (Chinese Academy of Sciences) at 60% design rotational speed. Some computed results are shown in this paper.

Copyright © 1989 by ASME
This article is only available in the PDF format.

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