NUMERICAL SIMULATION OF ATOMIZATION RAINFALL AND THE GENERATED FLOW ON A SLOPE

作     者：LIU Shi-he TAI Wei FAN Min LUO Qiu-shi 

作者机构：State Key Laboratory of Water Resources and Hydropower Engineering Science Wuhan University Wuhan430072 China Yellow River Engineering Consulting Co. Ltd Zhengzhou 450003 China 

出 版 物：《Journal of Hydrodynamics》 (水动力学研究与进展B辑（英文版）)

年 卷 期：2012年第24卷第2期

页      面：273-279页

核心收录：

学科分类：081504[工学-水利水电工程] 07[理学] 070601[理学-气象学] 08[工学] 0815[工学-水利工程] 0706[理学-大气科学] 

基　　金：Project supported by the Ministry of Water Resources special funds for Scientific Research on Public Causes (Grant No.201101005) 

主　　题：atomized flow unified model slope runoff numerical simulation 

摘      要：This article studies the atomization rainfall and the generated flow on a slope by numerical *** atomization rainfall is simulated by a unified model for splash droplets and a suspended mist,and the distribution of the diameter of splash rain drops is *** slope runoff generated by the atomization rainfall is simulated by a depth-averaged 2-D model,and the localization of the rainfall intensity in space is specially *** simulation results show that：（1） the median rain size of the atomization rainfall increases in the longitudinal direction at first,then monotonously decreases,and the maximum value is taken at the longitudinal position not in consistent with the position where the maximum rain intensity is *** the lateral direction the median rain size monotonously decreases,（2） since the atomization rainfall is distributed in a strongly localized area,it takes a longer time for its runoff yield to reach a steady state than that in the natural rainfall,the variation ranges of the water depth and the velocity in the longitudinal and lateral directions are larger than those in the natural rainfall.