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Entropy Production Rates From Viscous Flow Calculations: Part II — Flow in a Rectangular Elbow FREE

[+] Author Affiliations
John Moore, Joan G. Moore

Virginia Polytechnic Institute and State University, Blacksburg, VA

Paper No. 83-GT-71, pp. V001T01A033; 7 pages
doi:10.1115/83-GT-71
From:
  • ASME 1983 International Gas Turbine Conference and Exhibit
  • Volume 1: Turbomachinery
  • Phoenix, Arizona, USA, March 27–31, 1983
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 978-0-7918-7951-1
  • Copyright © 1983 by ASME

abstract

Entropy creation is studied in a three-dimensional turbulent flow in a rectangular elbow with 90 degrees of turning. In Part I, a method of evaluating entropy production rates in calculations of viscous flow was described. This method is used here to show where the calculated losses arise in the flow field.

The flow develops strong passage vortices as large shear layers at the inlet develop a streamwise component of vorticity. The entropy production in the shear layers is compared with the entropy creation in the wall boundary layers. The influence of the three-dimensional flow on the distributions of entropy production in the bend is discussed.

Copyright © 1983 by ASME
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