水流垂向扩散强度公式

水流垂向扩散强度公式

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contributed at 2018-12-04

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Affiliation:  
岳天祥编著
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yue@lreis.ac.cn
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Earth System SubjectEarth Surface SystemHydrosphere
Geography SubjectPhysical GeographyHydrology

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水流垂向扩散强度公式

水流垂向扩散强度可由涡动扩散系数KZ表示为局部理查德数(Richardson number)的函数:

                  

式中,k=0.40为冯-卡门常数;αβ为经验系数;g为重力加速度;v为纵向平均流速;z为垂直方向,向下为正;ρ为水沙混合物比重;C为含沙量(g•cm-3);ρw为咸水比重;ρ0=1为净水比重;γ=7.6×10-4为比例系数;s为含盐量;ρs=2.65(g•cm-3)为悬沙干比重;,b,c,d为本文利用近底层三层(1.0H,0.8H,0.6H)实测流速数据拟合的流速垂向分布的拟合系数。

 时伟荣:长江口浑浊带含沙量的潮流变化及其成因分析。地理学报,1993,48(5)

 

 

How to cite

《资源环境数学模型手册》 (2018). 水流垂向扩散强度公式, Model Item, OpenGMS, https://geomodeling.njnu.edu.cn/modelItem/e1e37f76-40be-4b52-b956-b2bc97fcb4d7
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Contributor

contributed at 2018-12-04

Authorship

Affiliation:  
岳天祥编著
Email:  
yue@lreis.ac.cn
Homepage:  
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Is authorship not correct? Feed back

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