Thermal Convection in a Shallow Closed Water Body with Floating Aquatic Plants

摘要：

We examined the influence of aquatic plants on the magnitude of thermal disturbance in a closed water body. As a result of hydraulic experiment on the attenuation of underwater illuminance in the covered part, it was understood that the attenuation rate of illuminance depended on the kind of the aquatic plant. In addition, the hydraulic experiment on the attenuation of thermal flux at the water surface with the kind and luxuriant density of aquatic plants showed that thermal flux at the water surface decreased when the luxuriant density of aquatic plants increased, and that the developmental velocity of mixed layer decreased based on the attenuation of thermal flux. As the numerical experiment by using above results as the boundary conditions at the water surface, the water temperature distribution and the development process of convection cells changed due to the horizontal convection was caused by the inhomogeneous disturbance in proportion as the luxuriant density and the degree of cover of aquatic plants

关键词： closed water body aquatic plant luzuriant density mized layer

作者: Kunihiko HAMAGAMI Ken MORI Yasumaru HIRAI

作者单位: Department of Bioproduction Environmental Sciences,Graduate School of Bioresource and Bioenvironment Faculty of Agriculture,Kyushu University,JAPAN

会议类型: 国际会议

会议名称: 2009 International Symposium on Environmental Science and Technology(2009环境科学与技术国际会议)

会议地点: 上海

会议语种:英文

页码: 320-325

在线出版日期: 2009-06-02（万方平台首次上网日期，不代表论文的发表时间）