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Effects of Guide Vanes in Transition Flow From a Round Pipe to a Rectangular Chamber

[+] Author Affiliations
D. G. Lin, B. P. Huynh

University of Technology, Sydney, Sydney, NSW, Australia

Paper No. IMECE2011-65640, pp. 983-989; 7 pages
doi:10.1115/IMECE2011-65640
From:
  • ASME 2011 International Mechanical Engineering Congress and Exposition
  • Volume 6: Fluids and Thermal Systems; Advances for Process Industries, Parts A and B
  • Denver, Colorado, USA, November 11–17, 2011
  • Conference Sponsors: ASME
  • ISBN: 978-0-7918-5492-1
  • Copyright © 2011 by ASME

abstract

In an effort to design a rectangular-box chamber for model testing and flow visualization, to be fitted into an existing horizontal axial-flow pump circuit, shown in Fig.1[1], a computational study has been conducted into the flow of water as it expands from a 400-mm-diameter round pipe into a 3-D-rectangular-box configuration. The geometry is asymmetric; the chamber’s bottom is aligned with the pipe’s bottom, but the pipe’s top is expanded into the chamber’s top, shown in Fig. 2. A commercial Computational Fluid Dynamics (CFD) software package is used to simulate the isothermal turbulent flow, using the standard K-epsilon turbulence model. The study examines the benefits of the guide vane in reducing the transition region’s length and producing the desirable flow pattern in the test chamber.

Copyright © 2011 by ASME

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