掺气减蚀设施数值模拟研究探讨

doi:10.3969/j.issn.1001-5485.2014.10.017

长江科学院院报 ›› 2014, Vol. 31 ›› Issue (10): 114-119.DOI: 10.3969/j.issn.1001-5485.2014.10.017

掺气减蚀设施数值模拟研究探讨

肖鸿¹, 周赤², 王思莹², 黄明海²

1.中国电建集团贵阳勘测设计研究院工程勘察分院,贵阳 550000;
2.长江科学院水力学研究所,武汉 430010

收稿日期:2013-07-10 修回日期:2014-10-17 出版日期:2014-10-01 发布日期:2014-10-20
作者简介:肖鸿(1988-), 男, 江西赣州人, 硕士研究生, 主要从事水力学及河流动力学研究, (电话)15180734752(电子信箱)xiaohong19882046@163.com。
基金资助:
国家自然科学基金资助项目(51109167)

Investigation on Numerical Simulation of Aeration Devices

XIAO Hong¹, ZHOU Chi², WANG Si-ying², HUANG Ming-hai²

1.Department of Engineering Survey, PowerChina Guiyang Engineering Corporation Limited, Guiyang 550000,China;
2.Hydraulics Department, Yangtze River Scientific Research Institute, Wuhan 430010, China

Received:2013-07-10 Revised:2014-10-17 Published:2014-10-01 Online:2014-10-20

摘要/Abstract

摘要： 采用标准κ-ε模型和VOF模型及欧拉模型对泄洪洞及掺气设施水力特性进行了三维数值模拟计算。主要计算了自由水面、掺气设施水力特性和空腔特性及坎后沿程渠底板中心线的掺气浓度。计算结果表明,VOF模型和欧拉模型可以在一定程度上模拟掺气设施水力特性和空腔形态等水力参数。总体而言,在对泄洪洞掺气设施的数值模拟方面,欧拉模型在一定程度上比VOF模型有更好的模拟精度。利用数值模拟可提高水利设计效率和节省费用,并为模型试验提供前期预测和指导,同时其结果可以作为模型试验补充和完善的依据,本文所采用的数值模拟方法及研究结果可供类似工程的研究参考。

关键词: 欧拉模型, VOF模型, 掺气跌坎, 空腔形态

Abstract: Standard κ-ε turbulence model, VOF model and Eulerian model were employed to simulate the three dimensional hydraulic characteristics of aerator in sluice tunnel. Free water surface, hydraulic characteristics and cavity characteristics on the aerator, as well as aerated air concentration along the centerline of the bottom of the channel behind the aerator were obtained. Results reveal that the VOF model and Eulerian model can be used to simulate the hydraulic characteristics of aerator and the cavity shape of aeration. In general, Eulerian model is more precise than VOF in simulating the aerator of sluice tunnel. Numerical simulation could improve the efficiency of project design and save cost, and provide guidance for model test. Also the simulation results could be taken as the basis to improve and perfect the model test. The numerical method and research result is a reference for similar engineering.

Key words: Eulerian model, VOF model, step aerator, cavity shape of aeration

中图分类号:

TV131

肖鸿, 周赤, 王思莹, 黄明海. 掺气减蚀设施数值模拟研究探讨[J]. 长江科学院院报, 2014, 31(10): 114-119.

XIAO Hong, ZHOU Chi, WANG Si-ying, HUANG Ming-hai. Investigation on Numerical Simulation of Aeration Devices[J]. JOURNAL OF YANGTZE RIVER SCIENTIFIC RESEARCH INSTI, 2014, 31(10): 114-119.

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掺气减蚀设施数值模拟研究探讨

Investigation on Numerical Simulation of Aeration Devices

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