Unsteady lifting surface theory for supersonic through-flow fan

Masanobu Namba, Toshiya Hanada

研究成果: Contribution to journalArticle査読

1 被引用数 (Scopus)


The purpose of this work is to predict analytically the unsteady loading on vibrating blades of a supersonic through-flow fan and conduct the parametric study of the aerodynamic instability. A linearized unsteady lifting surface theory on the basis of the finite radial eigenfunction series approximation is developed. It is assumed that each blade vibrates with a small displacement amplitude under zero mean loading. Numerical results for pure bending, pure torsional and combined bending and torsional vibrations are presented to demonstrate influences of interblade phase angle, location of torsion axis, axial Mach number and reduced frequency on the aerodynamic instability of blade motions.

ジャーナルJSME International Journal, Series B: Fluids and Thermal Engineering
出版ステータス出版済み - 1994

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering
  • Physical and Theoretical Chemistry
  • Fluid Flow and Transfer Processes

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