Flow around helicopter blade tip sections using a (3d) stereoscopic particle image velocimeter - Part II

Harika S. Kahveci, Cengiz Camci

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Scopus citations

Abstract

The present investigation deals with the detailed aerodynamic flow near a rotating helicopter rotor blade. Three-component velocity measurements using a Stereoscopic Particle Image Velocimetry system reveal the details of the near tip flow at various blade angle-of-attack values. The instantaneous flow in selected planes that are almost normal to the rotor blade tips is measured in a phaselocked manner as observed from the stationary frame. A model helicopter with a two-bladed rotor is utilized for experiments at a speed of 570 rpm corresponding to a tip velocity of 35.8 m/s (117.5 ft/s) and a tip Reynolds number of 9.6 x 104. Radial motion along the blade is analyzed with 3D PIV. Aerodynamic results obtained near the tip region, and specific issues related to the 3D PIV technique are discussed in detail. The current PIV results effectively show fine details of highly 3D flow fields near rotating machinery components.

Original languageEnglish (US)
Title of host publicationProceedings of the 11th International Symposium on Transport Phenomena and Dynamics of Rotating Machinery, ISROMAC-11
Pages727-735
Number of pages9
StatePublished - Dec 1 2006
Event11th International Symposium on Transport Phenomena and Dynamics of Rotating Machinery, ISROMAC-11 - Honolulu, HI, United States
Duration: Feb 26 2006Mar 2 2006

Publication series

NameProceedings of the 11th International Symposium on Transport Phenomena and Dynamics of Rotating Machinery, ISROMAC-11
Volume2

Other

Other11th International Symposium on Transport Phenomena and Dynamics of Rotating Machinery, ISROMAC-11
CountryUnited States
CityHonolulu, HI
Period2/26/063/2/06

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering

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