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论文摘要

浅水垫消力池的大涡模拟研究

Large Eddy Simulation on Stilling Basin with Shallow-water Cushion

作者:刘达(广东省水利水电科学研究院;广东省水动力学应用研究重点实验室);廖华胜(四川大学 水力学与山区河流开发保护国家重点实验室);李连侠(四川大学 水力学与山区河流开发保护国家重点实验室);黄本胜(广东省水利水电科学研究院;广东省水动力学应用研究重点实验室);蒋胜银(成都市市政工程设计研究院)

Author:Liu Da(Guangdong Research Inst. of Water Resources and Hydropower;Guangdong Key Lab. of Hydrodynamic Research,);Liao Huasheng(Key Lab. of Hydraulics and Mountain River Eng.,Sichuan Univ.);Li Lianxia(Key Lab. of Hydraulics and Mountain River Eng.,Sichuan Univ.);Huang Bensheng(Guangdong Research Inst. of Water Resources and Hydropower;Guangdong Key Lab. of Hydrodynamic Research,);Jiang Shengyin(Chengdu Municipal Eng. and Research Design Inst.)

收稿日期:2013-12-26          年卷(期)页码:2014,46(5):28-34

期刊名称:工程科学与技术

Journal Name:Advanced Engineering Sciences

关键字:浅水垫消力池;大涡模拟;流态;时均压力;脉动压力

Key words:stilling basin with shallow-water cushion;large eddy simulation;flow state;time average pressure;fluctuating pressure

基金项目:国家自然科学基金资助项目(51079091;51209154)

中文摘要

为了探讨大涡模拟方法是否适用几何体型及水力特性均为复杂的浅水垫消力池水流的模拟,采用大涡模拟方法对浅水垫消力池进行数值模拟计算,得到消力池内的流态、流速、时均压力及脉动压力等水力参数,与物理模型试验得到的数值基本一致,说明大涡模拟方法能较好地模拟具有复杂流动的浅水垫消力池的各种水力特性,该方法可以提供雷诺时均模型不能得到的脉动压力信息,可以采用该模拟方法深入研究该型消力池的水力特性及消能机理。

英文摘要

To testify whether large eddy simulation method can be applied to simulate the hydraulic characteristics in stilling basin with shallow-water cushion(SBSWC),a systematic comparison of calculation and experiment was conducted. It was shown that the flow regimes,velocity fields and pressures distributions obtained from LES are in good agreement with the experimental data, which indicated that it is reasonable to use LES to simulate the complex flow characteristics in SBSWC.

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