基于气动声学理论的喇叭型隧道缓冲结构优化

闫亚光; 杨庆山; 骆建军

doi:10.3969/j.issn.0258-2724.2016.05.003

基于气动声学理论的喇叭型隧道缓冲结构优化

doi: 10.3969/j.issn.0258-2724.2016.05.003

基金项目:

国家863计划资助项目（2011AA11A103）

国家自然科学基金资助项目（51178030）

详细信息

作者简介:
闫亚光(1978-),男,讲师,博士研究生,研究方向为隧道空气动力学,电话:15033425532,E-mail:09115283@bjtu.edu.cn

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- 被引次数: 0
出版历程
- 收稿日期: 2015-09-24
- 刊出日期: 2016-10-25

Optimizing Flared Hood of Tunnel Based on Aeroacoustics

摘要

摘要: 为了有效缓解隧道空气动力学效应导致的声爆现象，基于气动声学理论，对带喇叭型缓冲结构的隧道入口参数进行了优化。采用Green函数求解气动声学FW-H方程，得到了隧道内初始压缩波波前的压力和压力梯度，并根据喇叭型缓冲结构的特点，对缓冲结构的横断面积函数、入口断面积和长度进行优化设计。优化结果显示：隧道内压力梯度峰值随缓冲结构长度的增大而逐渐减小；考虑经济性因素，喇叭型缓冲结构的优化长度为10倍的隧道半径，优化缓冲结构的横断面积函数、入口断面积后，可使压力曲线成线性变化，压力梯度峰值降低63.9%，可避免入口处压力突变，缓解了声爆等微压波现象。
- 气动声学 /
- 隧道 /
- 喇叭型缓冲结构 /
- 优化 /
- 压力梯度
Abstract: In order to alleviate the sonic boom caused by aerodynamic effect in a tunnel, design parameters of the tunnel entrance with a flared hood were optimized. By solving the FW-H equation with Green's function, the pressure and pressure gradient of the initial compression wavefront in the tunnel were obtained. Then, the cross-sectional area function, the entrance cross-section area and the length of the flared hood were optimized according to the characteristics of the flared hood. The optimization results show that the peak pressure gradient decreases with an increase in the length of the tunnel hood. Considering economic factors, the optimal length of the flared hood is 10 times the tunnel diameter. With the optimized cross sectional area function and entrance area of the tunnel hood, the curves of pressure present a linear growth, and the peak pressure gradient is reduced by 63.9%. Consequently, the abrupt change of pressure at the tunnel entrance is avoided, and the phenomenon of the micro pressure wave such as sonic boom can be relieved effectively.
- aeroacoustics /
- tunnel /
- flared hood /
- optimization /
- pressure gradient

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参考文献(20)

田红旗. 中国高速轨道交通空气动力学研究进展及发展思考[J]. 中国工程科学,2015,17(4): 30-41. TIAN Hongqi. Development of research on aerodynamics of high-speed rails in China[J]. Engineering Sciences, 2015, 17(4): 30-41.

杨国伟,魏宇杰,赵桂林,等. 高速列车的关键力学问题[J]. 力学进展,2015,45(7): 217-460. YANG Guowei, WEI Yujie, ZHAO Guilin, et al. Research progress on the mechanics of high speed rails[J]. Advances in Mechanics, 2015, 45(7): 217-460.

袁磊,李人宪. 高速列车气动噪声及影响[J]. 机械工程与自动化,2013,10(5): 31-33. YUAN lei, LI Renxian. Aerodynamic noise of high-speed train and its impact[J]. Mechanical Engineering and Automation, 2013, 10(5): 31-33.

王英学,高波,朱丹,等. 高速铁路隧道空气动力效应控制技术[M]. 北京:科学出版社,2012: 6-55.

王宏林,雷波,毕海权. 压缩波惯性作用对其波形演变的影响[J]. 西南交通大学学报,2015,50(1): 118-123. WANG Honglin, LEI Bo, BI Haiquan. Influence of inertial effect of comperession wave on waveform evolution[J]. Journal of Southwest Jiaotong University, 2015, 50(1): 118-123.

赵文成,高波,王英学,等. 高速列车突入隧道引起的压缩波的理论研究[J]. 西南交通大学学报,2004,39(4): 447-450. ZHAO Wencheng, GAO Bo, WANG Yingxue, et al. Theoretical investigation of compression wave induced by high-speed train entering tunnel[J]. Journal of Southwest Jiaotong University, 2004, 39(4): 447-450.

李人宪,关永久,赵晶,等. 高速铁路隧道缓冲结构的气动作用分析[J]. 西南交通大学学报,2012,47( 2): 175-180. LI Renxian, GUAN Yongjiu, ZHAO Jing, et al. Aerodynamic analysis on entrance hood of high-speed railway tunnels[J]. Journal of Southwest Jiaotong University, 2012, 47( 2) : 175-180.

刘堂红,田红旗,梁习锋. 缓冲结构对隧道口微气压波的影响[J]. 中南大学学报:自然科学版,2009,11,40(5): 1306-1311. LIU Tanghong, TIAN Hongqi, LIANG Xifeng. lnfluence of hood on micro-pressure wave[J]. Journal of Central South University: Science and Technology, 2009, 11, 40(5): 1306-1311.

BENSON R S, GARG R D, WOLLATT D A. A numerical solution of unsteady flow problem[J]. Int. J. Mesh. Sci., 1964, 6: 117-144.

WOODS W A, POPE C W. A generalized flow prediction method for the unsteady flow generated by a train in a single tunnel[J]. Journal of Wind Engineering and Industrial Aerodynamics, 1981, 7: 331-360.

梅元贵,周朝晖,许建林. 高速铁路隧道空气动力学[M]. 北京:科学出版社,2009: 1-39.

BARON A, MOSSI M, SIBILLA S.The alleviation of the aerodynamic drag and wave effects of high speed trains in very long tunnels[J]. Journal of Wind Engineering and Industrial Aerodynamics, 2001, 89: 365-401.

刘加利. 高速列车气动噪声特性分析与降噪研究[D]. 成都:西南交通大学,2013.

李晓东,江旻,高军辉,等. 计算气动声学进展与展望[J]. 中国科学:物理学力学天文学,2014,44(3): 234-248. LI Xiaodong, JIANG Min, GAO Junhui, et al. Progress and prospective of computational aeroacoustics[J]. Scientia Sinica Physica, Mechanica Astronomica, 2014, 44(3): 234-248.

HOWE M S. Theory of vortex sound[M]. Cambridge: Cambridge University Press, 2003: 1-81.

张强. 气动声学基础[M]. 1版. 北京:国防工业出版社,2012: 134-165.

杜键,梁建英,田爱琴. 高速列车受电弓气动噪声特性分析[J]. 西南交通大学学报,2015,50(5): 935-941. DU Jian, LIANG Jianying, TIAN Aiying. Analysis of aeroacoustics characteristics for pantograph of high-speed trainsl[J]. Journal of Southwest Jiaotong University, 2015, 50(5): 935-941.

HOWE M S. The compression wave produced by a high-speed train entering a tunnel[J]. Proc.R. Soc. Lond., 1998, A454: 1523-1534.

HOWE M S. On the compression wave generated when a high-speed train enters a tunnel with a flared portal[J]. Fluids Struct, 1998(13): 481-498.

HOWE M S, IIDA M, FUKUDA T, et al. Theoretical and experimental investigation of the compression wave generated by a train entering a tunnel with a flared portall[J]. Journal of Fluid Mechanics, 2000, 425: 111-132.

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文章访问数: 591
HTML全文浏览量: 74
PDF下载量: 207
被引次数: 0

基于气动声学理论的喇叭型隧道缓冲结构优化

doi: 10.3969/j.issn.0258-2724.2016.05.003

作者简介: 闫亚光(1978-),男,讲师,博士研究生,研究方向为隧道空气动力学,电话:15033425532,E-mail:09115283@bjtu.edu.cn

计量

出版历程

Optimizing Flared Hood of Tunnel Based on Aeroacoustics

计量

出版历程

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作者简介:
闫亚光(1978-),男,讲师,博士研究生,研究方向为隧道空气动力学,电话:15033425532,E-mail:09115283@bjtu.edu.cn