1. 南京航空航天大学 航空学院,南京,210016
2. 南京航空航天大学 航空航天结构力学及控制全国重点实验室,南京,210016
3. 中国空气动力研究与发展中心 高速空气动力研究所,绵阳,621000
孔文杰(1994—),男,河南信阳人,博士研究生,研究方向:前沿流动控制技术. E-mail:kwenjie@nuaa.edu.cn
董 昊*(1983—),男,河南洛阳人,教授,研究方向:空气动力学、实验流体力学、流动稳定性、转捩. E-mail:donghao@nuaa.edu.cn
吴继飞*(1980—),男,安徽亳州人,副研究员,研究方向:实验空气动力学. E-mail:kkwjf@126.com
纸质出版:2024
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孔文杰, 董昊, 赵一迪, 等. 低温高雷诺数下摩擦阻力测量及多孔介质减阻研究[J]. 空气动力学学报, 2024, 42(8): 84−92.
KONG Wenjie, DONG Hao, ZHAO Yidi, et al. Skin friction measurement and drag reduction of porous media under cryogenic and high Reynolds number conditions[J]. 2024, 42(8): 84-92.
孔文杰, 董昊, 赵一迪, 等. 低温高雷诺数下摩擦阻力测量及多孔介质减阻研究[J]. 空气动力学学报, 2024, 42(8): 84−92. DOI: 10.7638/kqdlxxb-2024.0027
KONG Wenjie, DONG Hao, ZHAO Yidi, et al. Skin friction measurement and drag reduction of porous media under cryogenic and high Reynolds number conditions[J]. 2024, 42(8): 84-92. DOI: 10.7638/kqdlxxb-2024.0027.
为研究低温高雷诺数条件下多孔介质湍流减阻规律及雷诺数效应,在0.3 m低温连续式风洞开展了壁面摩擦阻力测量及多孔介质减阻试验。分别在光滑平板和多孔介质区域下游布置低温脉动压力传感器和油流,对脉动压力功率谱及下游全局摩擦阻力进行测量。结果表明:摩擦阻力系数随雷诺数的增大而减小;多孔介质减阻率随雷诺数的增大(增大马赫数或降低来流总温),呈无固定规律下降趋势,且多孔介质的引入,使下游脉动压力的低频信号强度增加,高频信号强度减弱;在马赫数
Ma
= 0.300、雷诺数
Re
= 7.51×10
6
、来流总温
T
0
= 140 K这一典型工况下,多孔介质仍具有11.4%的减阻率,初步验证了在低温高雷诺数条件下使用多孔介质减阻控制策略的可行性。
To investigate the drag reduction laws and the Reynolds number effects of porous media under cryogenic and high Reynolds number conditions
this study conducted skin-friction measurements and drag reduction experiments in a 0.3 m transonic cryogenic wind tunnel. Pressure sensors and oil flow devices were installed downstream of the smooth plate and porous media region respectively
to measure the power spectra of fluctuating pressure and the global skin friction. It is shown that the skin friction coefficient decreases with the increase of Reynolds number. With the increase of Reynold
s number (increasing the Mach number or decreasing the total temperature of the incoming flow)
the porous media drag reduction ratio shows a non-uniform decreasing trend. Besides
the introduction of porous media
the low-frequency signal strength of the downstream pulsating pressure increases
and the intensity of the high-frequency signal is weakened. Under the typical condition that Mach number
Ma
= 0.300
Reynolds number
Re
= 7.51×10
6
and the total temperature of the incoming flow
T
0
= 140 K
the drag reduction ratio of porous media is 11.4%
which initially verifies the feasibility of the drag reduction control strategy under low temperature and high Reynolds number conditions.
GOLDSTEIN S . Fluid mechanics in the first half of this century[J ] . Annual Review of Fluid Mechanics, 1969 , 1 ( 1 ): 1 − 29 .
LI P. Studies of direct measurement techniques about global skin friction[D]. Nanjing: Nanjing University of Aeronautics and Astronautics, 2012 (in Chinese).
TANNER L H, BLOWS L G . A study of the motion of oil f ilms on surfaces in air flow, with application to the measurement of skin friction[J ] . Journal of Physics E: Scientific Instruments, 1976 , 9 ( 3 ): 194 − 202 .
BROWN J L, NAUGHTON J W. The thin-oil-film equation[R ] . California: Ames Research Center, 1999. https://ntrs.nasa.gov/search.jsp?R = 19990047906
DRIVER D M . Application of oil-film interferometry skin-friction measurement to large wind tunnels[J ] . Experiments in Fluids, 2003 , 34 ( 6 ): 717 − 725 .
DURAISAMY K, SPALART P R, RUMSEY C L. Status, Emerging ideas and future directions of turbulence modeling research in aeronautics[R ] . Langley Research Center, 2017. https://ntrs.nasa.gov/search.jsp?R = 20170011477
WALSH M, WEINSTEIN L. Drag and heat transfer on surfaces with small longitudinal fins[C]// 11th Fluid and Plasma Dynamics Conference, Seattle, WA. Reston, Virginia: AIAA, 1978: 1161.
CHOI H, MOIN P, KIM J . Active turbulence control for drag re duction in wall-bounded flows[J ] . Journal of Fluid Mechanics, 1994 , 262 : 75 − 110 .
DENG B Q. Research on the mechanism of wall turbulence drag reduction control based on coherent structure[D]. Beijing: Tsinghua University, 2014 (in Chinese).
LI H Y, JI S S, TAN X K, et al . Effect of Reynolds number on drag reduction in turbulent boundary layer flow over liquid-gas interface[J ] . Physics of Fluids, 2020 , 32 ( 12 ): 122111 .
ROSTI M E, BRANDT L, PINELLI A . Turbulent channel flow over an anisotropic porous wall–drag increase and reduction[J ] . Journal of Fluid Mechanics, 2018 , 842 : 381 − 394 .
DU H, LI Q X, ZHANG Q L, et al . Experimental study on drag reduction of the turbulent boundary layer via porous media under nonzero pressure gradient[J ] . Physics of Fluids, 2022 , 34 ( 2 ): 025110 .
KLAUSMANN K, RUCK B . Drag reduction of circular cylinders by porous coating on the leeward si de[J ] . Journal of Fluid Mechanics, 2017 , 813 : 382 − 411 .
XU C X . Coherent structures and drag-reduction mechanism in wall turbulence[J ] . Advances in Mechanics, 2015 , 45 ( 1 ): 111 − 140 (in Chinese).
GÓMEZ-DE-SEGURA G, GARCÍA-MAYORAL R . Turbulent drag reduction by anisotropic permeable substrates–analysis and direct numerical simulations[J ] . Journal of Fluid Mechanics, 2019 , 875 : 124 − 172 .
RASTEGARI A, AKHAVAN R . On drag reduction scaling and sustainability bounds of superhydrophobic surfaces in high Reynolds number turbulent flows[J ] . Journal of Fluid Mechanics, 2019 , 864 : 327 − 347 .
ZHENG X J, WANG G H . Progresses and challenges of high Reynolds number wall-bounded turbulence[J ] . Advances in Mechanics, 2020 , 50 ( 0 ): 1 − 49 (in Chinese).
PECORA R . Morphing wing flaps for large civil aircraft: evolution of a smart technology across the Clean Sky program[J ] . Chinese Journal of Aeronautics, 2021 , 34 ( 7 ): 13 − 28 .
HURST E, YANG Q, CHUNG Y . The effect of Reynolds number on turbulent drag reduction by streamwise travelling waves[J ] . Journal of Fluid Mechanics, 2014 , 759 : 28 − 55 .
SQUIRE L C . The motion of a thin oil sheet under the steady boundary layer on a body[J ] . Journal of Fluid Mechanics, 1961 , 11 ( 2 ): 161 − 179 .
LIU T S, WANG B, WANG B, et al. Physics-based optical flow method in global flow diagnostics[C]// 27th AIAA Aerodynamic Measurement Technology and Ground Testing Conference, Chicago, Illinois. Reston, Virginia: AIAA, 2010: 4361.
SHI C C . An explicit expression of the turbulent frictional drag coefficient for a flat plate[J ] . Acta Aeronautica et Astronautica Sinica, 1988 , 9 ( 6 ): 299 − 302 (in Chinese).
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