Benefits of rake and skew for turbulence ingestion noise

Joseph R. Gavin, Michael L. Jonson, Peter D. Lysak, Gerald C. Lauchle

Research output: Contribution to conferencePaperpeer-review

Abstract

Turbulent flow through a fan or pump produces a broadband spectrum of unsteady lifting forces on the blades. These forces cause undesirable blade stresses, blade vibration and sound. Jonson (1994) has shown that broadband improvements can be obtained by adding rake and skew to the stacking line of rotor blade sections. This paper adds understanding to those experimental results, and shows that benefits can be reliably predicted using analytical methods.

Original languageEnglish (US)
Pages51-56
Number of pages6
DOIs
StatePublished - Jan 1 2003
Event2003 ASME International Mechanical Engineering Congress - Washington, DC., United States
Duration: Nov 15 2003Nov 21 2003

Other

Other2003 ASME International Mechanical Engineering Congress
CountryUnited States
CityWashington, DC.
Period11/15/0311/21/03

All Science Journal Classification (ASJC) codes

  • Acoustics and Ultrasonics
  • Mechanical Engineering

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