[1]付小莉,李静.大坝非恒定泄水中的超饱和气体模型研究[J].深圳大学学报理工版,2010,27(3):296-300.
 FU Xiao-li and LI Jing.Simulation of dissolved gas supersaturation in unsteady discharge process[J].Journal of Shenzhen University Science and Engineering,2010,27(3):296-300.
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大坝非恒定泄水中的超饱和气体模型研究()
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《深圳大学学报理工版》[ISSN:1000-2618/CN:44-1401/N]

卷:
第27卷
期数:
2010年3期
页码:
296-300
栏目:
土木建筑工程
出版日期:
2010-07-30

文章信息/Info

Title:
Simulation of dissolved gas supersaturation in unsteady discharge process
文章编号:
1000-2618(2010)03-0296-05
作者:
付小莉1李静12
1) 武汉大学水资源与水电工程科学国家重点实验室,武汉430072
2) 长江水利委员会长江科学院,武汉 430010
Author(s):
FU Xiao-li1 and LI Jing12
1)State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan 430072, P.R.China
2)Changjiang River Scientific Research Institute of Changjiang River Water Resources Commission, Wuhan 430010, P.R.China
关键词:
气体溶解浓度两相流紊流模型非恒定泄水生态影响
Keywords:
gas supersaturation two-phase flowturbulent flow unsteady dischargeecological impact
分类号:
X 524
文献标志码:
A
摘要:
基于气体向气泡界面和水体表面传质的机理,针对大坝下游溶解气体过饱和的数值模拟,分析大坝非恒定泄水过程中流量的改变对过饱和气体浓度的影响.引入溶解气体对流扩散输运方程,建立三维紊流两相流模型,用于模拟气泡在水体中的运动和溶解.选用美国麦克纳里大坝非恒定泄水进行过饱和气体模拟预测,并与实测值进行比较,结果表明,所建立模型的可靠性及其相关应用有效.
Abstract:
The influence of discharge variation to the saturated gas concentration under unsteady discharging conditions was analyzed by means of the mechanism of gas diffusion to bubble interface and water surface. An unsteady three-dimensional and two-phase flow turbulent model was proposed to predict the movement and dissolution of gas in water. The dissolved gas convection-diffusion equation was introduced to solve the dissolved gas concentration, and standard k-e model was employed to close the mathematical equations. The calculated results have good agreement with measurements at the Mcnary dam.

参考文献/References:

[1]李玉梁,廖文根.泄水建筑物的复氧能力与控制[J].水利学报,1994,(7):63-69.
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[3]程香菊,陈永灿.大坝泄洪下游水体溶解气体超饱和理论分析及应用[J].水科学进展,2007,18(3): 346-350.
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[5]Politanno M S,Carrica P M,Weber L A.大坝下游过饱和气体两相流模型[J].水利研究,2007,45(2):165-177.(英文版)
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[1]LI Yu-liang,LIAO Wen-gen.The reaeration and its control of sluice structures[J].Journal of Hydraulic Engineering,1994,(7):63-69.(in Chinese)
[2]CHEN Qun,DAI Guang-qing,LIU Hao-wu.Numerical simulation of overflow in stepped spillway[J].Journal of Hydraulic Engineering,2002(9):20-26.(in Chinese)
[3]CHENG Xiang-ju,CHEN Yong-can.Theoretical analysis of dissolved gas supersaturation downstream of sluicing dam and application[J].Advance in Water Science,2007,18(3): 346-350.(in Chinese)
[4]TAN Chun-li,LI Ling.Numerical model of dissolved gas super saturation flow over spillway of Gezhou dam project[J].Science Newspaper,2008,26(18):45-48.(in Chinese)
[5]Politano M S,Carrica P M,Weber L A.Multidimensional two-phase flow model for the total dissolved gas downstream of spillways[J].Journal of Hydraulic Research,2007,45(2):165-177.
[6]CHEN Pi,Dudukovic M P.Three-dimensional simulation of bubble column flows with bubble coalescence and breakup[J].American Institute of Chemical Engineers Journal,2005,51(3):696-712.

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备注/Memo

备注/Memo:
收稿日期:2009-09-15;修回日期:2010-01-18
基金项目:国家自然科学基金资助项目(50909075);教育部博士点基金资助项目(20090141120030)
作者简介:付小莉(1979-),女(汉族),江西省赣州市人, 武汉大学讲师、博士.E-mail:xlfu@whu.edu.cn
更新日期/Last Update: 2010-07-30