后向台阶层流分离湍流结构的实验研究

ACTA AERONAUTICAET ASTRONAUTICA SINICA ›› 1996, Vol. 17 ›› Issue (2): 149-154.

• 论文 • Previous Articles Next Articles

EXPERIMENTAL INVESTIGATION ON THE TURBULENT COHERENT STRUCTURES OF LAMINAR SEPARATION FLOW OVER A BACKWARD-FACING STEP

Wang Jinjun, Lian Qixiang, Lan Shilong

Fluid Mechanics Institute, Beijing University of Aeronautics and Astronoutics,Beijing,100083

Received:1994-04-23 Revised:1994-12-05 Online:1996-04-25 Published:1996-04-25

Abstract

Abstract: An experimental investigation was conducted with LDV and hydrogen bubble techniques in water flow. The shear layer thickness, the vorticity thickness, the maximum value of turbulence intensities, the turbulent coherent structure, the variations fo wall shear stress and the boundary layer shape factor were obtained. In the region of redevelopment a detailed analysis was first made for the streak structures in the near wall region, and the turbulent boundary layer was formed at (x-x r)/ h =20

Key words: backward facing steps, separated flow, laminar boundary layer, flow characteristics

CLC Number:

Wang Jinjun;Lian Qixiang;Lan Shilong. EXPERIMENTAL INVESTIGATION ON THE TURBULENT COHERENT STRUCTURES OF LAMINAR SEPARATION FLOW OVER A BACKWARD-FACING STEP[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 1996, 17(2): 149-154.

[1]	Weijia LIU, Yingkun LI, Xiong CHEN, Chunlei LI. Panel flutter characteristics on shock wave/boundary layer interaction based on fluid⁃structure coupling [J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2023, 44(6): 127085-127085.
[2]	Haoxiang WANG, Yao XIAO, Kaikai ZHANG, Guangli LI, Siyuan CHANG, Zhongwei TIAN, Kai CUI. Effect of body trailing edge shape on subsonic flow characteristics of high-pressure capturing wing configuration [J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2023, 44(6): 127215-127215.
[3]	Jiahui SONG, Aiguo XU, Long MIAO, Yugan LIAO, Fuwen LIANG, Feng TIAN, Mingqing NIE, Ningfei WANG. Entropy increase characteristics of shock wave/plate laminar boundary layer interaction [J]. Acta Aeronautica et Astronautica Sinica, 2023, 44(21): 528520-528520.
[4]	Binbin ZHAO, Heng ZHANG, Jie LI. Review of numerical simulation on complex separated flow of iced airfoil [J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2023, 44(1): 627211-627211.
[5]	SHU Bowen, DU Yiming, GAO Zhenghong, XIA Lu, CHEN Shusheng. Numerical simulation of Reynolds stress model of typical aerospace separated flow [J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2022, 43(11): 526385-526385.
[6]	LI Chengcheng, LI Fang, YANG Bin, WANG Ying. Numerical investigation of nozzle flow separation control using plasma actuation [J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2021, 42(7): 124547-124547.
[7]	CHEN Hao, YUAN Xianxu, BI Lin, HUA Ruhao, SI Fangfang, TANG Zhigong. Simulation of separated flow based on RANS/LES hybrid method [J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2020, 41(8): 123642-123642.
[8]	ZHANG Honghai, TANG Yiwen, XU Yan. Optimizing arrival traffic flow in airport terminal airspace under trajectory based operations [J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2020, 41(7): 323844-323844.
[9]	WANG Weixing, ZHU Ting, ZHANG Rentao, LI Youchen. Flow field reconstruction of hypersonic inward turning inlet based on configuration [J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2020, 41(3): 123493-123493.
[10]	LIU Guangyuan, ZHANG Lin, CHEN Dehua, LIN Xuedong, JIA Zhiliang. Experiment on nonlinear flow near perforated wall with slanted holes in transonic wind tunnel [J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2019, 40(5): 122497-122497.
[11]	WANG Kelei, ZHOU Zhou, ZHU Xiaoping, XU Xiaoping. Multi-propeller/wing coupled aerodynamic design at low Reynolds number [J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2018, 39(8): 121918-121918.
[12]	LI Wei, MENG Dehong, HONG Junwu, LI Hua. Effect of mesh topology on numerical simulation of DLR-F6 configuration [J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2017, 38(2): 120177-120183.
[13]	XU Zhulin, DA Xingya, FAN Zhaolin. Assessment of swirl distortion of serpentine inlet based on five-hole probe [J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2017, 38(12): 121342-121342.
[14]	DU Hai, SHI Zhiwei, CHENG Keming, LI Ganniu, SONG Tianwei, LI Zheng. Frequency optimization and vortex dynamic process analysis of separated flow control by nanosecond pulsed plasma discharge [J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2016, 37(7): 2102-2111.
[15]	WANG Weixing, GUO Rongwei. Flow characteristics of an inward turning inlet with circular outlet [J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2016, 37(2): 533-544.

EXPERIMENTAL INVESTIGATION ON THE TURBULENT COHERENT STRUCTURES OF LAMINAR SEPARATION FLOW OVER A BACKWARD-FACING STEP

PDF (PC)

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 15

Recommended Articles

Metrics

Comments