摘要
为了更好地对河流、海洋的局部冲淤问题进行研究,在FLUENT中通过二次开发建立了泥沙局部冲淤二维数值模型.模型采用标准k-ε紊流模型来计算流场,通过自定义函数功能将泥沙输运模型嵌入到FLUENT中,床面地形的变化采用动网格技术来进行实现.通过2个算例对该模型的可靠性及通用性进行了验证.结果表明,该模型模拟结果与前人结果基本符合,模型的通用性较好.该模型可以应用于其他形式的局部冲淤数值模拟,具有广阔的应用前景.
In order to study the local erosion and deposition in a fiver or an ocean, a two dimensional （2-D） numer- ical model on local erosion and deposition is established through the redevelopment in FLUENT code. The flow field is calculated by applying standard equations. By using a user defined function, the sediment transport model is em- bedded into FLUENT and besides, the bed profile is simulated by utilizing a dynamic mesh. The study used two ex- periment cases to verify the reliability and universality of the scouring model. The research results show that the predictions from the model are in agreement with the prior results, and the scouting model is so universal that it may be used to simulate local scour in different cases. Therefore, it has a broad application prospect.
出处
《哈尔滨工程大学学报》
EI
CAS
CSCD
北大核心
2013年第2期145-150,共6页
Journal of Harbin Engineering University
基金
国家自然科学基金资助项目(50879084
51279189)
关键词
局部冲淤
FLUENT
自定义函数
动网格
local erosion and deposition
FLUENT
user-defined function
dynamic mesh
