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Maximizing 3D Clocking Effect by the Guidance of Edge Matching

[+] Author Affiliations
LuCheng Ji, WeiLin Yi

Chinese Academy of Sciences, Beijing, China

Jiang Chen

Beijing University of Aeronautics and Astronautics, Beijing, China

Zhao Yan

China Aerospace Science and Industry Corporation, Beijing, China

Paper No. GT2007-27619, pp. 1725-1731; 7 pages
  • ASME Turbo Expo 2007: Power for Land, Sea, and Air
  • Volume 6: Turbo Expo 2007, Parts A and B
  • Montreal, Canada, May 14–17, 2007
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 0-7918-4795-0 | eISBN: 0-7918-3796-3
  • Copyright © 2007 by ASME


Clocking can produce benefit has become a common viewpoint in turbomachinery field. However, there still is a question, that is “why the benefit of two-dimensional (2D) clocking model is always larger than that of three-dimensional (3D) clocking model?”. A general way of maximizing 3D clocking benefit by edge matching (EM) is put forward. On the basis of experience and knowledge accumulated in investigations on clocking effects, a further simplified method is presented and emphasized. Aachen 1.5 stage low speed subsonic axial turbine is used as an example of maximizing 3D clocking benefits by applying EM. Results show that 3D clocking benefit can be maximized by routinely using EM with relatively low computational resource requirements, and the benefit is considerable enough to be paid more attention.

Copyright © 2007 by ASME



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