典型文献
Non-equilibrium concentration profile formulas of suspended sediment and their preliminary applications
文献摘要：
The vertical concentration profiles in non-equilibrium sediment transport processes generally deviate from the equilibrium concentration distribution of suspended sediment.The non-equilibrium concen-tration profile formulas currently available are those of Han and Brown,respectively.However,the complexity of these formulas limits their use in practical calculations.To improve the usefulness of these formulas,the unknown parameters in Han's formula are reduced from three to two,and the three different forms of Brown's formula are transformed into one.These formulas then are proved to be essentially the same to some extent,and only different in the expression form of the exponent.Han's formula then is improved,based on which the theoretical calculation methods and distribution char-acteristics of non-equilibrium profiles are presented.Han's and Brown's formulas are verified qualita-tively and quantitatively.Finally,these formulas are applied in the investigation of the characteristics of certain physical quantities,such as the recovery factor of sediment concentration,near-bottom sediment flux,and the non-equilibrium Péclet number in the non-equilibrium sediment transport process.These results clearly reveal that the magnitude of these physical quantities decreases in the erosion process and increases in the deposition process.The results also show that the formulas are largely applicable for the non-equilibrium sediment transport conditions.
文献关键词：
中图分类号：
作者姓名：
Zipu Ma;Qingchao Guo;Jianzhao Guan;Maohua Le
作者机构：
State Key Laboratory of Simulation and Regulation of Water Cycle in River Basin,Beijing 100048,China;China Institute of Water Resources and Hydropower Research,Beijing 100048,China;Yellow River Institute of Hydraulic Research,Yellow River Conservancy Commission of the Ministry of Water Resources,Zhengzhou 450003,China
文献出处：
引用格式：
[1]Zipu Ma;Qingchao Guo;Jianzhao Guan;Maohua Le-.Non-equilibrium concentration profile formulas of suspended sediment and their preliminary applications)[J].国际泥沙研究（英文版）,2022(04):505-513
A类：
clet
B类：
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AB值：
0.435968
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