摘要
本文采用控制体积法对沿水深平均的二维水流微分方程进行了离散，建立了二维潮流数学模型，并对连云港附近的潮流进行了验证计算。验证结果表明，无论是流场的整体形态，还是定点的水位、流速及流向都与实际情况符合良好。由此可以看出，本模型不仅能应用于潮流计算，而且可以推广到各种平面不恒定流计算中，且有较强的通用性。
To model tidal flow,a mathematical model is developed by discretizing the depth-averaged differential equations using Control-volume formulation. Control-volume formulation is used to discretize the differential equations,because it has many good features. Among them,tlle most attractive feature is that the resulting solution would imply that the integral conservation of quantities such as mass and momentum is exactly satisfied over any group of control volumes and,of course,over the whole calculation domain. This characteristic exists for any number of grid points. Thus,even the coarse-grid solution exhibits exact integral balance. After this model is obtained,it is verified by the field data of Lianyungong. The computational results such as tide level and velocity indicate a good agreement with the field data.
出处
《水动力学研究与进展（A辑）》
CSCD
北大核心
1995年第6期602-609,共8页
Chinese Journal of Hydrodynamics
关键词
数学模型
控制体积法
潮流
mathematical model, Control-volume formulation, tidal flow
