摘要
冰塞成灾是寒冷地区河流上存在的共性问题,冰塞的形成与演变可粗略划分为封河、水内冰冰塞和开河等3个阶段。基于固液两相流理论,尝试研究水内冰冰花颗粒的运动轨迹和初始冰塞头部的推进过程,冰粒浮速的模拟计算结果与现有经验公式计算结果定性一致,冰粒运动轨迹和初始冰塞头部的推进过程与实验室中观察现象类似。
Disasters associated with ice jam occur frequently in rivers in cold region. The formation and evolution of ice jam can be roughly classified into three stages： ice cover formation, freeze up, and breakup. Based on solid-liquid two-phase flow theory, this paper studies the movement locus of ice frazil and the advance of the edge of initial ice jam. The simulated average rising velocity of ice particles matched those obtained from existing empirical formulas, and the modeled locus of ice frazil and the advance of the edge of initial ice jam were consistent with those revealed by the laboratory experimerits.
出处
《合肥工业大学学报（自然科学版）》
CAS
CSCD
北大核心
2008年第2期191-195,共5页
Journal of Hefei University of Technology：Natural Science
基金
国家自然科学基金资助项目(10372028)
关键词
固液两相流
数值模拟
随机轨道模型
初始冰塞
solid-liquid two-phase flow
numerical modeling
random path model
initial ice jam
