Large-eddy simulation of shock/cooling-film interaction

被引：0
|
作者：
机构：
[1] Konopka, Martin
[2] Meinke, Matthias
[3] Schröder, Wolfgang
来源：
Konopka, M. | 1600年 / AIAA International卷 / 50期
关键词：
The interaction of shock waves with supersonic cooling films is analyzed using large-eddy simulations. The laminar cooling flow is injected at Mach 1.2 through a slot into a fully turbulent boundary layer at Mach 2.44. For this injection condition; three configurations are investigated. A zero-pressure-gradient flow is compared with two configurations where shock waves are generated by a flow deflection of 5 deg. The shock waves impinge onto the cooling flow at two positions downstream of the slot. When the impingement is located within the potential-core region of the cooling flow; the adiabatic cooling effectiveness is reduced by as much as 36% compared to the zeropressure- gradient configuration because the shock/cooling-film interaction excites a transition of the laminar slot boundary layer. Additionally; turbulence levels are significantly increased by the shock wave; and high temperature fluctuations occur. When the shock-wave impingement is located further downstream of the slot; there is an even steeper slope in cooling effectiveness in the streamwise direction. That is; the slope is 37 and21% steeper compared to the zero-pressure gradient and the potential-core cases. The turbulent Prandtl number varied over the flow region of the shock/cooling-film interaction from 0.5 to 2. Copyright © 2012 by M. Konopka; M; Meinke; and W. Schröder. Published by the American Institute of Aeronautics and Astronautics; Inc; with permission. All rights reserved;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Journal article (JA)
引用
下载
收藏
相关论文
共 50 条
  • [21] Large-Eddy Simulation of Shaped Hole Film Cooling with the Influence of Cross Flow
    Wang, Qingsong
    Su, Xinrong
    Xin, Yuan
    INTERNATIONAL JOURNAL OF TURBO & JET-ENGINES, 2022, 39 (04) : 575 - 588
  • [22] LARGE-EDDY SIMULATION OF SHAPED HOLE FILM COOLING WITH THE INFLUENCE OF CROSS FLOW
    Wang, Qingsong
    Li, Yifei
    Bian, Xiutao
    Su, Xinrong
    Yuan, Xin
    PROCEEDINGS OF THE ASME TURBO EXPO: TURBOMACHINERY TECHNICAL CONFERENCE AND EXPOSITION, 2019, VOL 5A, 2019,
  • [23] Large-Eddy Simulations of a Cylindrical Film Cooling Hole
    Johnson, Perry L.
    Kapat, Jayanta S.
    JOURNAL OF THERMOPHYSICS AND HEAT TRANSFER, 2013, 27 (02) : 255 - 273
  • [24] Large eddy simulation of film cooling
    Guo, Tingting
    Li, Shaohua
    Liu, Jianhong
    CHALLENGES OF POWER ENGINEERING AND ENVIRONMENT, VOLS 1 AND 2, 2007, : 1419 - 1422
  • [25] Large eddy simulation of film cooling
    Guo, Ting-Ting
    Liu, Jian-Hong
    Li, Shao-Hua
    Xu, Zhong
    Zhongguo Dianji Gongcheng Xuebao/Proceedings of the Chinese Society of Electrical Engineering, 2007, 27 (11): : 83 - 87
  • [26] Large-Eddy Simulation of Broadband Unsteadiness in a Shock/Boundary-Layer Interaction
    Aubard, G.
    Gloerfelt, X.
    Robinet, J. -C.
    AIAA JOURNAL, 2013, 51 (10) : 2395 - 2409
  • [27] Large-eddy simulation of shock-turbulence interaction in supersonic diffuser flows
    Mahapatra, Susila
    Kumar, Sandeep
    Sinhamahapatra, Kalyan P.
    Ghosh, Somnath
    JOURNAL OF TURBULENCE, 2017, 18 (06): : 512 - 538
  • [28] Studies of shock/turbulent shear layer interaction using Large-Eddy Simulation
    Genin, Franklin
    Menon, Suresh
    COMPUTERS & FLUIDS, 2010, 39 (05) : 800 - 819
  • [29] Improving Film Cooling Efficiency with Lobe-Shaped Cooling Holes: An Investigation with Large-Eddy Simulation
    Wang, Kefu
    Ao, Yiqun
    Zhao, Kai
    Zhou, Tao
    Li, Feng
    APPLIED SCIENCES-BASEL, 2023, 13 (07):
  • [30] Large-eddy simulation of shock-wave/turbulent-boundary-layer interaction
    Loginov, Maxim S.
    Adams, Nikolaus A.
    Zheltovodov, Alexander A.
    JOURNAL OF FLUID MECHANICS, 2006, 565 : 135 - 169
12345