文氏效应在叶片根部马蹄涡控制中的应用

王建明; 刘炜; 徐志晖; 艾延廷; 王成军

文氏效应在叶片根部马蹄涡控制中的应用

基金项目: 辽宁省自然科学基金(20102177)

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- 文章访问数: 1938
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出版历程
- 收稿日期: 2010-12-30
- 修回日期: 2011-06-23
- 刊出日期: 2011-11-28

Study on the control of the wing-body juncture horseshoe vortex utilizing Venturi tube

摘要

摘要: 为研究文氏管在叶片根部马蹄涡控制作用的应用,针对简化了的叶片-平板结构在叶片上游平板上的某位置开狭缝,在平板的另一侧构造一文氏管(文氏管的喉道位于狭缝处),引射叶片根部的流体,进而控制马蹄涡.数值模拟了不同狭缝位置的湍流流动;结果表明了改变狭缝相对于叶片的位置能很好地控制马蹄涡,甚至能完全消除叶片前马蹄涡.提出的方法可以利用外势流的能量而无需额外消耗能量,为一种被动的控制手段,有很大的实际应用前景.利用文氏效应的控制方法简单实用,因此工程中采用该法是不错的一种选择.
- 马蹄涡 /
- 角区流动 /
- 分离流动 /
- 复杂流动 /
- 文氏效应
Abstract: In order to study on the control of the wing-body juncture horseshoe vortex utilizing Venturi tube,a typical wing-body junction region was presented.In order to conduct the control of horseshoe vortex,a wing with a slot placed upstream in the flat plate and a Venturi tube mounted on the other side of the plate was established.Because of the Venturi principle,when the flow passed over the throat,the slot acted as a quality injector.Numerical simulation was conducted to investigate turbulent junction flow with different positions of the slot.The results show that the horseshoe vortex can be controlled well,and furthermore eliminated completely horseshoe vortex,through the modification of the slot position relative to the wing.The proposed method can utilize potential energy,and does not consume any additional power.Therefore,it is a kind of passive control method with a great practical application prospect.The approach of the control of junction flows based on Venturi principle presented in this paper is promising in the engineering application since it is very simple and applicable.
- horseshoe vortex /
- junction flow /
- separated flow /
- complex flow /

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参考文献(24)

[1]	康红文,范萌,魏中磊.两个角区湍流场及其尾迹的实验研究[J].力学学报,1996,28(4):385-391. KANG Hongwen,FAN Meng,WEI Zhonglei.Experimental investigation of two turbulent wing-body junctions and wakes flow[J].ACTA Mechanica Sinica,1996,28(4):385-391.(in Chinese)
[2]	康红文,范萌,魏中磊.角区湍流场的实验测量和数值模拟[J].水动力学研究与进展:A辑,1997,12(1):63-71. KANG Hongwen,FAN Meng,WEI Zhonglei.Measurements and numerical simulation of turbulent wing-body junction flow[J].Journal of Hydrodynamics,1997,12(1):63-71.(in Chinese)
[3]	周逊,韩万金.涡轮矩形叶栅中的旋涡模型的进展回顾[J].航空动力学报,2001,16(3):198-204. ZHOU Xun,HAN Wanjin.A review of vortex model development for rectangular turbine cascades[J].Journal of Aerospace Power,2001,16(3):198-204.(in Chinese)
[4]	刘火星,陈矛章,蒋浩康.扩压叶栅角区马蹄涡的实验研究[J].工程热物理学报,2000,21(6):703-706. LIU Huoxing,CHEN Maozhang,JANG Haokang.Experimental study of horseshoe vortex in the corner region of a linear compressor cascade[J].Journal of Engineering Thermophysics,2000,21(6):703-706.(in Chinese)
[5]	Baker C J.The oscillation of horseshoe vortex system[J].ASME Transactions Journal of Fluids Engineering,1991,113(4):89-95.
[6]	Simpson R L.Junction flows[J].Annual Review of Fluid Mechanics,2001,33:415-43.
[7]	Wei Q D,Chen G,Du X D,An experimental study on the structure of juncture flows [J].Journal of Visualization,2001,3(4):341-348.
[8]	张华,吕志咏,孙盛东.应用PIV对角区非定常马蹄涡结构的实验研究[J].力学学报,2008,40(2):171-178. ZHANG Hua,LV Zhiyong,SUN Shengdong.The experimental study on unsteady horseshoe vortex structure in juncture flow with PIV[J].Chinese Journal of Theoretical and Applied Mechanics, 2008,40(2):171-178.(in Chinese)
[9]	张华庆,魏庆鼎.墩前角涡实验研究[J].水动力学研究与进展, 2003,18(2):217-223. ZHANG Huaqing,WEI Qingding.An experimental study on the vortices in the upstream region of a square cylinder[J].Journal of Hydrodynamics,2003,18(2):217-223.(in Chinese)
[10]	陈军.马蹄涡结构的显示[J].流体力学实验与测量,2003,17(4):71-78. CHEN Jun.Visualizations of horseshoe vortex structure[J].Experiments and Measurements in Fluid Mechanics,2003,17(4):71-78.(in Chinese)
[11]	郭辉,彭艺,李志勇,等.逆压梯度转捩边界层流动结构显示[J].实验流体力学,2008,22(2):68-73. GUO Hui,PENG Yi,LI Zhiyong,et al.Visualization study on the flow structures in the transitional boundary layer under an adverse pressure gradient[J].Journal of Experiments in Fluid Mechanics,2008,22(2):68-73.(in Chinese)
[12]	毕卫涛,魏庆鼎.小波方法检测角区湍流的流动结构[J].空气动力学学报,2001,19(4):414-419. BI Weitao,WEI Qingding.Detection of structures in juncture turbulence by wavelet method[J].ACTA Aerodynamica Sinica,2001,19(4):414-419.(in Chinese)
[13]	赵威,呼和敖德.圆柱绕流局部冲刷机制的实验研究[J].力学学报,2006,38(5):577-585. ZHAO Wei,HUHEAODE.Experimental investigation on the local scouring mechanism around a circular pier[J].Chinese Journal of Theoretical and applied Mechanics,2006,38(5):577-585.(in Chinese)
[14]	Wei Q D,Wang J M,Chen G,et al.Modification of junction flows by altering the section shapes of the cylinders[J].Journal of Visualization,2008,11(2):115-124.
[15]	张华,吕志咏.后掠翼身交接区流动结构及参数影响研究[J].流体力学实验与测量,2000,14(2):16-20. ZHANG Hua,LV Zhiyong.Experimental investigation of vortex characteristics in swept wing/body junctions[J].Experiments and Measurements in Fluid Mechanics,2000,14(2):16-20.(in Chinese)
[16]	Gupta A K.Hydrodynamic modification of the horseshoe vortex at a vertical pier junction with ground[J].Physics of Fluids,1987,30(4):1213-1215.
[17]	Devenport W J,Simpson R L,Dewitz M B,et al.Effects of a leading-edge fillet on the flow past an appendage-body junction[J].AIAA Journal,1992,30(9):2177-2183.
[18]	张华,吕志咏.后掠翼身干扰区流动特性及改善措施研究[J].空气动力学学报,2000,18(4):467-472. ZHANG Hua,LV Zhiyong.Flow characteristics and its melioration of swept wing/body interference[J].ACTA Aerodynamica Sinica,2000,18(4):467-472.(in Chinese)
[19]	Wang J M,Bi W T,Wei Q D.Effects of an upstream inclined rod on the circular cylinder-flat plate junction flow[J].Experiments in Fluids,2009,46(6):1093-1104.
[20]	Zhang P F,Wang J J,Lu S F, et al.Aerodynamic characteristics of a square cylinder with a rod in a staggered arrangement[J].Experiments in Fluids,2005,38(4):494- 502.
[21]	Wang J J,Zhang P F,Lu S F,et al,Drag reduction of a circular cylinder using an upstream rod[J].Flow,Turbulence and Combustion,2006,76(1):83-101.
[22]	Kang K J,Kim T,Song S J.Strengths of horseshoe vortices around a circular cylinder with an upstream cavity[J].Journal of Mechanical Science and Technology,2009,23(7):1773-1778.
[23]	Devenport W J,Simpson R L.Time-dependent and time-averaged turbulence structure near the nose of a wing-body junction[J].Journal of Fluid Mechanics,1990,210(1):23-55.
[24]	Baker C J.The turbulent horseshoe vortex[J].Journal of Wind Engineering and Industrial,1980,6(1):9-23.