TURBULENCE INVESTIGATION OF THE NASA COMMON RESEARCH MODEL WING TIP VORTEX
作者: Đorđe S. Čantrak James T. Heineck Laura K. Kushner Novica Z. Janković
刊名: Thermal Science, 2018, Vol.21 (Supplement), pp.S851-S862
来源数据库: Society for Thermal Engineers of Serbia
DOI: https://doi.org/10.2298/TSCI161005328C
关键词: TurbulenceInvariant mapsVortexHigh-speed stereo particle image velocimetryCommon Research Model
原始语种摘要: The paper presents high-speed stereo particle image velocimetry investigation of the NASA Common Research Model wing tip vortex. A three-percent scaled semi–span model, without nacelle and pylon, was tested in the 32- by 48-inch Indraft tunnel, at the Fluid Mechanics Laboratory at the NASA Ames Research Center. Turbulence investigation of the wing tip vortex is presented. Measurements of the wing-tip vortex were performed in a vertical cross-stream plane three tip-chords downstream of the wing tip trailing edge with a 2 kHz sampling rate. Experimental data are analyzed in the invariant anisotropy maps for three various angles of attack (0°, 2°, and 4°) and the same speed generated in the tunnel (V∞ = 50 m/s). This corresponds to a chord Reynolds number 2.68x105, where the chord length of...
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关键词翻译
关键词翻译
  • image 
  • particle 颗粒
  • invariant 不变量
  • chord 
  • computational 计算的
  • NASA National Aeronautics and Space Administration
  • investigation 研究
  • tunnel 坑道
  • attack 侵蚀
  • stream