摘要
基于河势概念和Hermite三次插值函数 ,提出了河势贴体河道平面二维正交四边形网格的生成方法 ;与边界层坐标系下水深平均流体力学控制方程和SIMPLER算法联合使用 ,建立了河道平面二维数学模型 ;进行了葛洲坝枢纽至磨盘溪河段二维网格生成及水流泥沙数学模型的实例研究 ;
On the basis of the concept of river-regime and Hermite's triple interpolating function, a generating method of 2-D river-regime-fitted orthogonal quadrilateral grid for river channels is proposed. Combining with simplified depth-average governing equations of fluid mechanics under boundary layer coordinates and SIMPLER algorithm, a 2-D mathematical model for river channels is developed. As an engineering illustration of application, the research of grid generation and water-sediment simulation for the river reaches from the Gezhouba Project to Mopanxi Gauge Station is conducted. Primary features of this grid-generating method are discussed.
出处
《长江科学院院报》
EI
CSCD
北大核心
2001年第4期14-17,共4页
Journal of Changjiang River Scientific Research Institute
基金
国家自然科学基金资助重大项目 (5 0 0 996 2 0 )
