夏卫生,雷廷武,张晴雯,赵军.坡面薄层水流中电解质脉冲迁移模型[J].水利学报,2003,34(11):0090-0095 |
坡面薄层水流中电解质脉冲迁移模型 |
Mathematical model for electrolyte pulse transport in shallow water flow on hilly slope |
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DOI: |
中文关键词: 水流速度 表面流 电解质脉冲 最小二乘法 |
英文关键词: flow velocity overland flow electrolyte pulse least square method |
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中文摘要: |
确定坡面薄层水流速度是研究土壤侵蚀动力学的基础。本研究中利用薄层水流中电解质脉冲的迁移特性,建立电解质脉冲在水流的迁移的数学模型,用拉普拉斯变换计算出解析解,最小二乘法计算了有关参数,建立了测量水流速度的电解质脉冲法。实验结果初步表明此方法是可行的,这为测量坡面薄层水流速度和研究溶质在水流中的迁移提供了理论依据。 |
英文摘要: |
The electrolyte pulse is utilized to measure the shallow water flow on hilly slope.The mathematical model for the transport of electrolyte pulse is established based on the theory of dilute dispersion, and the analytical solution of the model is calculated by means of Laplace Transformation.The relevant parameters are obtained by least square method.The model is the theoretical foundation of the method for water flow velocity measuring.The feasibility of this method is verified by experiment result. |
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