Influence of a Large-Eddy-Breakup-Device on the Turbulent Interface of Boundary Layers
作者: Cheng ChinRamis ÖrlüPhilipp SchlatterJason MontyNicholas Hutchins
作者单位: 1University of Adelaide
2Royal Institute of Technology
3University of Melbourne
刊名: Flow, Turbulence and Combustion, 2017, Vol.99 (3-4), pp.823-835
来源数据库: Springer Nature Journal
DOI: 10.1007/s10494-017-9861-7
关键词: Large eddy simulationWall-bounded turbulenceLarge-eddy-break-up deviceTurbulent/non-turbulent interface
原始语种摘要: The effects of implementing a large-eddy break-up device (LEBU) in a turbulent boundary layer on the interaction with the boundary layer is investigated with particular emphasis on the turbulent/non-turbulent interface (TNTI). The simulation data is taken from a recent well-resolved large eddy simulation (Chin et al. Flow Turb. Combust. 98 , 445–460 2017 ), where the LEBU was implemented at a wall-normal distance of 0.8 δ (local boundary layer thickness) from the wall. A comparison of the TNTI statistics is performed between a zero-pressure-gradient boundary layer with and without the LEBU. The LEBU is found to delay the growth of the turbulent boundary layer and also attenuates the fluctuations of the TNTI. The LEBU appears to alter the structure size at the interface, resulting in a...
全文获取路径: Springer Nature  (合作)
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影响因子:1.274 (2012)

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关键词翻译
关键词翻译
  • device 装置
  • layer 
  • turbulent 紊聊
  • interface 界面
  • boundary 边界
  • simulation 模拟
  • structure 构造
  • large 大的
  • without 在之外
  • break 破坏