长江科学院院报 ›› 2016, Vol. 33 ›› Issue (1): 54-60.DOI: 10.11988/ckyyb.20140761

• 水力学 • 上一篇    下一篇

明流泄洪洞水力特性的二维数值模拟与试验研究

张春晋1,李永业1,孙西欢1,2   

  1. 1.太原理工大学 水利科学与工程学院,太原 030024;
    2.山西水利职业技术学院,山西 运城 044004
  • 收稿日期:2014-08-28 出版日期:2016-01-20 发布日期:2016-01-20
  • 通讯作者: 李永业 (1977-) , 男, 山西临猗人, 副教授, 博士, 主要研究方向为工业水力学, (电话) 13934239832 (电子信箱) 1223015067@qq.com。
  • 作者简介:张春晋 (1989-) , 男, 山西平遥人, 硕士研究生, 主要研究方向为水力学及河流动力学, (电话) 15903404039 (电子信箱) 137764773@qq.com。
  • 基金资助:
    国家自然科学基金项目 (51109115,51179116)

Two-dimensional Numerical Simulation and ExperimentalResearch of Hydraulic Characteristics in Spillway Tunnelwith Free Water Surface

ZHANG Chun-jin1, LI Yong-ye1, SUN Xi-huan1,2   

  1. 1.College of Water Resources Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China;
    2.Shanxi Conservancy Technical Institute, Yuncheng 044004, China
  • Received:2014-08-28 Online:2016-01-20 Published:2016-01-20

摘要: 为了使明流泄洪洞满足设计泄流量和校核泄流量要求,对其结构进行了优化设计,并根据垣曲县境内板涧河河口右岸的小浪底引黄工程泄洪洞实际工程,建立了明流泄洪洞泄流数学模型。计算中引入FLUENT软件中的VOF(Volume of Fluid)模型和Mixture模型进行数值计算,得到了设计和校核水位条件下泄洪洞泄流能力、水深沿程分布、水流空化数以及断面流速和压强及挑距,并将部分计算结果与模型试验结果进行比较分析,结果表明两者吻合较好。因此采用FLUENT软件研究明流龙抬头泄洪洞的水力特性是可行的,为该项软件应用于实际工程提供了理论依据。

关键词: 泄洪洞, 数值模拟, 空化数, 水力学特性, VOF模型

Abstract: In the design of structure of spillway tunnel with free water surface, design discharge and check discharge should be fulfilled. In view of this, we established a numerical flow model for Yellow River diversion project of Xiaolangdi, located at the right bank of Jianhe River in Yuanqu of Shanxi province. On the basis of volume of fluid (VOF) model and Mixture model, we obtained relevant parameters including discharge capacity, distribution of water depth along the direction of water flow, cavitation number, sectional velocity , pressure and ski-jump distance on the conditions of design water level and check water level. The results show that, simulated values are in good agreement with test values; and it is feasible to study hydraulic characteristics of spillway tunnel with free water surface by using Fluent software; finally, the research results can provide theoretical reference for the application of the software in practical projects.

Key words: spillway tunnel, numerical simulation, cavitation number, hydraulic characteristics, VOF model

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