中文核心期刊
CSCD来源期刊
中国科技核心期刊
RCCSE中国核心学术期刊

重庆交通大学学报(自然科学版) ›› 2015, Vol. 34 ›› Issue (5): 84-88.DOI: 10.3969/j.issn.1674-0696.2015.05.17

• 港口航道·水利水电·资源环境 • 上一篇    下一篇

船闸短廊道格栅消能室消能特性研究

陈明1,梁应辰2,宣国祥3,陈明栋1   

  1. 1.重庆交通大学 水利水运工程教育部重点实验室,重庆 400074;2.中华人民共和国交通运输部,北京 100736;3.南京水利科学研究院,江苏 南京 210029
  • 收稿日期:2013-05-06 修回日期:2015-06-10 出版日期:2015-11-04 发布日期:2015-11-04
  • 作者简介:陈明(1983—),男,江西九江人,博士,主要从事通航水力学方面的研究。E-mail:chenmingjy@126.com。
  • 基金资助:
    重庆市教委科学技术研究项目(KJ1400322);重庆市科委自然科学基金项目(CSTC2011JJA30002)

Energy Dissipation Characteristics of Room with Grating Holes of Shiplock Filling and Emptying System

Chen Ming1,Liang Yingchen2,Xuan Guoxiang3,Chen Mingdong1   

  1. 1. Key Laboratory of Hydraulic & Waterway Engineering of the Ministry of Education of the People’s Republic of China, Chongqing Jiaotong University, Chongqing 400074, China; 2. Ministry of Transport of the People’s Republic of China, Beijing, 100736, China; 3 Nanjing Hydraulic Research Institute, Nanjing 210029, Jiangsu, China
  • Received:2013-05-06 Revised:2015-06-10 Online:2015-11-04 Published:2015-11-04

摘要: 针对带格栅消能室的船闸短廊道头部输水系统,建立了整体输水系统三维模型;通过RNG k ~ ε双方程紊流模型,廊道工作阀门的开启过程利用动网格技术,并结合自由水面处理技术的VOF法,对船闸正常运行工况的灌水全过程进行了三维流动动态仿真研究。以试验观测得到的水位、流量和流速过程线,验证了数学模型和数值方法。根据消能率和闸室自由水面紊动能总量,分析了格栅消能室的消能效果;依据紊动能、紊动耗散率及流速分布揭示了消能机理。结果表明:格栅消能室可消耗90%以上的水流能量,且主要的能量消耗发生在消能室内大量水流能量的交换过程中。

关键词: 航道工程, 船闸, 输水系统, 消能, 数值模拟

Abstract: As for the lock-head filling system of shiplock composed of short culverts and energy dissipation room with grating holes, its whole 3-D model was established. Through RNG k~ε model of turbulence flow, the 3-D numerical simulation for dynamic characteristics of filling flow under the normal operation condition were conducted by using dynamic mesh technology for the valve and method. According to the energy dissipation ratio and the amount of free surface turbulence kinetic energy,the energy dissipation effect of room with grating holes was analyzed. According to the turbulence kinetic energy, turbulence energy dissipation ratio and velocity distribution, the energy dissipation mechanism was revealed. The results indicated that more than 90% of thewater flow energy can be consumed by the energy dissipation room with grating holes and the energy consumption mainly occurs in the process of energy exchange in the energy dissipation room.

Key words: waterway engineering, shiplock, filling and emptying system, energy dissipation, numerical simulation

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