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A United Theory of Hybrid Problems for Fully 3-D Incompressible Rotor-Flow Based on Variational Principles With Variable Domain FREE

[+] Author Affiliations
Liu Gaolian

Shanghai Institute of Mechanical Engineering, Shanghai, China

Paper No. 85-IGT-119, pp. V001T02A043; 5 pages
doi:10.1115/85-IGT-119
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

Making use of functional variations with variable domain and natural boundary conditions, this paper presents a unified theory of various hybrid problems (being a unification as well as a generalization of direct- & inverse problems) for 3-D incompressible potential flow in a rotor-blading. Three families of variational principles (VPs) have been established and provide a series of new rational ways for blade design and a sound theoretical basis for the finite element method (FEM). This theory can be extended to compressible and rotational flows and also constitutes an important part of the optimum design theory of bladings (8).

Copyright © 1985 by ASME
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