运动侧边界海洋问题的自适应网格模拟方法
-
摘要: 文中给出了普遍形式的变动界运动学条件,通过对其进行的量阶分析可知,在宽阔潮间带少域采用该条件是必要的.推导出了任意运动曲线坐标系下普遍适用的二维浅海流体动力学方程组和可变边界运动学条件,从而方便地采用随岸界的运动而自动伸缩的自适应网格方法,来模化具有运动边界的浅海动力学问题.用此模型数值模拟了1969年的一次风暴潮,特别包含了黄河三角洲海域的风暴潮漫滩过程.
-
Nichlos B D,C W Hirt and R Hotchkiss.SOLA-VOF:a solution algorithm for transient fluid flow with multiple free surface,LA-8355,1980 Flather R A and Heaps N S.Tidal computations for Morecambe Bay.Geophys.J.R.Astron.Soc.,1975,42,489-517 Leendertse J J and EC Gritton.A water quality simulation model for well mixed estuaries and coastal seas.Computation Procedures,V ol.11,The R and Corporation,New York,1971,29-33 孙文心,杨宗严,史峰岩.对风暴潮漫滩预报模式的分析与探讨.青岛海洋大学学报,1994,24(4):293-300 吴巍,孙文心.A DI方法的改进及其对渤海局部海域风暴潮漫滩的应用.青岛海洋大学学报,1995,25(1):146-152 Ramaswamy B and M Kawhara.Lagrangian finite element analysis applied to viscous free surface fluid flow.Int.J.Numer.Methods Fluids,1987,7,953-984 Medina D,J Ligget,A Birchwood and K Torrence.A consistent boundary element method for free surface hydrodynamic calculations.Int.J.Numer.Methods Fluids,1991,12,835-857 Takizaw a A,S Koshizuka and S Kondo.Generalization of physical component boundary fitted coordinate(PCBFC) method for the analysis of free-surface flow.Int.J.Numer.Methods Fluids,1992,15,1 213-1 237 Lynch and Gray.Finite element simulation of fluid in deforming region.J.Comput.Phys.,1980,39,135-153. Johns B,S K Dube,P C Sinha,U C Mohanty and A D Rao.The simulation of a continuously deforming lateral boundaryin problems involving the shallow water equations.Comput.Fluids,1982,10,105-116 史峰岩,孙文心.极坐标变换变边界模型及其应用.海洋与湖沼,1995,26(4):369-376 孙文心.超浅海风暴潮模型的进一步研究.山东海洋学院学报,1987,17,34-45 Brackbill J U and J S Saltzman.Adaptive zoning for singular problems in two dimensions.J.Comput.Phys.,1982,46,342-368 曾平.适应型坐标变换在天然河道平面计算中的应用.水动力学研究与进展,1991,6,100-107 刘卓,曾庆存.自适应网格在大气海洋问题中的初步应用.大气科学,1994,19(6):641-648 史峰岩,孙文心.渤海局部海域风暴潮漫滩数值模拟.海洋与湖沼,1993,24(1):16-23
点击查看大图
计量
- 文章访问数: 880
- HTML全文浏览量: 7
- PDF下载量: 1060
- 被引次数: 0