水工实时耦合复合模型的实现——以淮河入海水道模型为例  

Realization of a realtime coupling hydraulic hybrid model--Taking Huaihe River Channel as an example

作　　者：苏杭丽[1] 张东生[1] 

机构地区：[1]河海大学交通与海洋工程学院,江苏南京210098

出　　处：《河海大学学报（自然科学版）》2002年第6期95-98,共4页Journal of Hohai University(Natural Sciences)

摘　　要：以概化的淮河入海水道为例研究复合模型的实现.通过对原型的总体分析确定复合边界的位置,对复合边界划分的两个部分分别建立物理模型和数学模型.为实现数、物模的耦合,数学模型采用菱形差分网格.为了提高耦合的精度,在数学模型中加入了复合边界处水位变化的预判断.对影响复合模型运行的一些因素进行了分析,强调复合模型实时耦合中参数的匹配问题.给出了模型的运行情况,其精度满足工程需要,实现了实时耦合的复合模型.With a generalized Huaihe River outfall waterway as an example, a study is performed on the realization of a hybrid model. The position of the hybrid boundary is determined by a general prototype analysis, and a physical model and a mathematical model are developed for two parts divided by the hybrid boundary. For realization of the coupling between the physical model and the mathematical model, rhombic differential grids are adopted in the mathematical model, and a prediction of the water level variation at the hybrid boundary is added to the mathematical model, which may help improve the precision of coupling. Besides, some factors influencing the operation of the hybrid model are analyzed with emphasis placed on the parameter matching in realtime coupling of the hybrid model. The operating results of the model are presented, the precision of which satisfies the engineering requirements.

关 键 词：淮河 实时耦合 复合模型 模拟技术 入海水道 水力学 水土模型 

分 类 号：TV131.61[水利工程—水力学及河流动力学]