| 浅水数学模型在植被影响河道水流运动中的应用 |
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| 引用本文： | 白凤朋,杨中华,向爱农,刘方平,廖伟,时红.浅水数学模型在植被影响河道水流运动中的应用[J].水电能源科学,2019,37(5):53-56. |
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| 作者姓名： | 白凤朋 杨中华 向爱农 刘方平 廖伟 时红 |
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| 作者单位： | 长江水资源保护科学研究所;武汉大学水资源与水电工程科学国家重点实验室;江西省灌溉试验中心站 |
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| 基金项目： | 国家自然科学基金项目（51379157，51679170）；江西省重点研发计划项目（20171BBH80019）; 江西省水利厅科技项目（KT201629） |
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| 摘 要： | 以植被水流为例,基于Godunov型有限体积方法开发了模拟浅水植被水流的二维数学模型,并采用水槽试验对建立的植被水流数学模型进行验证,发现计算结果与试验数据吻合较好。在此基础上,研究了植被对河道水流运动的影响。结果表明,植被的存在改变了水流运动结构,增加了河床阻力,植被区流速减小,非植被区流速增加。
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| 关 键 词： | 浅水 数学模型 植被 河道水流运动 影响 应用 |
Application of Shallow Water Numerical Model in the Study of the Vegetation Effect on River Flow |
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| BAI Feng-peng,YANG Zhong-hua,XIANG Ai-nong,LIU Fang-ping,LIAO Wei,SHI Hong.Application of Shallow Water Numerical Model in the Study of the Vegetation Effect on River Flow[J].International Journal Hydroelectric Energy,2019,37(5):53-56. |
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| Authors: | BAI Feng-peng YANG Zhong-hua XIANG Ai-nong LIU Fang-ping LIAO Wei SHI Hong |
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| Affiliation: | (Changjiang Water Resources Protection Institute,Wuhan 430051,China;State Key Laboratory of Water Resources and Hydropower Engineering Science,Wuhan University,Wuhan 430072,China;Jiangxi Provincial Centre of Irrigation Experiment,Nanchang 330201,China) |
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| Abstract: | Based on the Godunov finite volume method, two-dimensional numerical model was developed to simulate the shallow water flows under the influence of vegetation. The proposed numerical model was validated with the flume experiments in partially vegetated channels. Numerical results were agreement with the flume experimental data. The impact of vegetation on river flow was studied. The results show that the existence of vegetation changed the structure of water flow, increased the river bed resistance, decreased the flow velocity in the vegetation area, and increases the flow velocity in non-vegetation area. |
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| Keywords: | shallow water mathematical model vegetation river flow impact application |
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