| 泄洪闸三维流态CFD优化分析 |
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| 引用本文： | 郭园,程永光,李国栋.泄洪闸三维流态CFD优化分析[J].武汉大学学报(工学版),2012,45(2):182-186,192. |
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| 作者姓名： | 郭园 程永光 李国栋 |
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| 作者单位： | 1. 武汉大学水资源与水电工程科学国家重点实验室,湖北武汉,430072
2. 西安理工大学水利水电学院,陕西西安,710048 |
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| 基金项目： | 基金项目:国家自然科学基金项目 |
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| 摘 要： | 采用最新CFD方法对具体工程泄洪闸水流流态进行模拟分析.先给出了数学模型和计算方法;然后结合模型实验成果,用CFD详细分析了泄流能力与水面线、压力、流速等流场参数的规律性,弄清了不良流态的原因;进而提出加大侧墙弧度以消除吸气漩涡及加大孔口断面避免脱流的措施,通过3个方案对比分析验证了其效果,并得出最佳方案的泄流能力、进水口流态及泄槽内流态、压力和速度的分布规律.
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| 关 键 词： | 泄洪闸 CFD 流态优化 |
Simulation and optimization of three-dimensional fluid flow in flood sluice by CFD method |
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| GUO Yuan,CHENG Yongguang,LI Guodong.Simulation and optimization of three-dimensional fluid flow in flood sluice by CFD method[J].Engineering Journal of Wuhan University,2012,45(2):182-186,192. |
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| Authors: | GUO Yuan CHENG Yongguang LI Guodong |
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| Affiliation: | 1.State Key Laboratory of Water Resources and Hydropower Engineering Science,Wuhan University,Wuhan 430072,China; 2.School of Water Resources and Hydroelectric Engineering,Xi’an University of Technology,Xi’an 710048,China) |
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| Abstract: | The flood sluice flow has great influence on the safety of a hydraulic project.The sluice flow patterns of a specific project are simulated and analyzed by the computational fluid dynamics(CFD).First,the numerical model and simulating approach are given.Second,the characteristics of discharge capacity,water surface profile,pressure distributions,flow rates,and other flow parameters are analyzed by CFD results,along with some model experimental data.Third,the causes of poor flow conditions are clarified.Finally,the measures for eliminating the vortex and flow separation by increasing the side wall arc and the orifice section are proposed;their effects are validated by comparative analysis of three schemes.And the best discharge capacity,the inlet flow pattern and the tank vent flow pattern,pressure and velocity distribution are obtained. |
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| Keywords: | flood sluice computational fluid dynamics (CFD) flow pattern optimization |
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