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Experimental Investigation on Aerodynamic Characteristics of a Variable Area Nozzleless Volute FREE

[+] Author Affiliations
Feng Zhenping, Shen Zuda, Xiang Yimin

Xi’an Jiaotong University, Xi’an, China

Paper No. 85-IGT-75, pp. V001T02A027; 10 pages
doi:10.1115/85-IGT-75
From:
  • ASME 1985 Beijing International Gas Turbine Symposium and Exposition
  • Volume 1: Aircraft Engine; Turbomachinery
  • Beijing, People’s Republic of China, September 1–7, 1985
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 978-0-7918-7942-9
  • Copyright © 1985 by ASME

abstract

The aerodynamic characteristics of a variable area nozzleless volute (VAV) for small radial inflow turbines are studied with the aid of cold air tests in which flow parameters inside the volute channel and at the outlet of the nozzleless ring are measured for cases of various cross-sectional areas. The experimental investigation shows that the desired aerodynamic parameters, especially the outlet flow angle α1 as well as the mass flow rate range can be obtained by varying the croes-sectional area of the VAV. A reasonable approximate method for calculating the average outlet flow angle α1 is presented in which the variation of the circulation in the flow is taken into account.

Copyright © 1985 by ASME
This article is only available in the PDF format.

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