IGTC-6 A New Pseudo-Potential Function for Rotational Flow and Its Application to Transonic Turbo-Flow : Part I: Blade-to-Blade Flow(Session A-2 TRANSONIC CASCADE FLOW)

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概要

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• By means of the term-condensing method[10] a new general function-the pseudo-potential function-is introduced, being a simple and consistent generalization of the potential function to general rotational turbo-flow. It retains almost all advantages of the potential function, while removing its restriction to flow potentiality (namely homentropy and homrothalpy). The general formulation of rotational flow along S_1-and S_2-stream sheets in turbomachines is derived, and methods of solution are given with special attention to transonic and supersonic flows, providing a new physically self-consistent and computationally simple flow model and allowing for the vorticity generated just behind shocks. Then a family of variational principles for the S_1-flow is established and based thereupon finte element solutions to some transonic flow examples are obtained, which agree with the Euler's equation solution and the measurements fairly well. This model can be further generalized to fully 3-D rotational flow, especially 3-D transonic turbo-flow.

• 公益社団法人日本ガスタービン学会の論文

著者

• Liu G.l.

  Shanghai University And Shanghai Institute Of Appl. Maths. & Mechanics

• Liu G.l.

  Shanghai Institute Of Mechanical Engineering

• Wang H.G.

  Power Engineerting Department, East China University of Technology

• Wang H.g.

  Power Engineerting Department East China University Of Technology

関連論文

• IGTC-6 A New Pseudo-Potential Function for Rotational Flow and Its Application to Transonic Turbo-Flow : Part I: Blade-to-Blade Flow(Session A-2 TRANSONIC CASCADE FLOW)
• IGTC-5 Variable-Domain Finite Element Method Based on Variational Principles for Solving Hybrid Problems of Fully 3-D Compressible Rotor-Flow(Session A-2 ANALYSIS OF CASCADE FLOW)

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