Study on the combined effect of various injection conditions on the drag reduction by a counter-flow jet in supersonic flow
作者: Yongchan KimTae-Seong RohHwanil HuhHyoung Jin Lee
作者单位: 1Department of Aerospace Engineering, Inha University, 100 Inha-ro, Michuhol-gu, Incheon, 22212, Republic of Korea
2Department of Aerospace Engineering, Chungnam National University, 99 Daehak-ro, Yuseong-Gu, Daejeon 34134, Republic of Korea
刊名: Aerospace Science and Technology, 2020, Vol.98
来源数据库: Elsevier Journal
DOI: 10.1016/j.ast.2019.105580
关键词: Drag reductionCounter-flow jetSupersonic flowJet injection conditionThrust reversal
原始语种摘要: Abstract(#br)Parametric investigations of drag reduction by counter-flow jet in supersonic flow have been conducted through numerical simulations. An axisymmetric RANS equation was solved to analyze the drag reduction effect of each parameter. This study revealed a general tendency of the drag reduction effect on various shapes and counter-flow jet conditions and confirmed the conditions for obtaining the maximum drag reduction. In addition, the counter-flow jet structure and flow transition were also analyzed. Five parameters, jet mass flow rate, nozzle size, nozzle exit Mach number, gas total temperature, and gas types, were applied to analyze the drag reduction and flow structure. The results showed that the jet mass flow rate is the dominant factor of drag reduction and flow...
全文获取路径: Elsevier  (合作)
影响因子:0.873 (2012)

  • reduction 减少
  • conditions 条件式
  • counter 计数器
  • various 千变万化的
  • effect 效应
  • injection 贯入
  • ratio 
  • nozzle 喷嘴
  • transition 转移
  • parameter 参数