论文摘要
基于Boussinesq方程的波浪数学模型主要用来模拟水波在近岸浅水区的非线性变形,被广泛应用于海岸工程中。近几十年来,其数学模型本身和数值求解方法都得到了很大的发展。但是,这也使得求解此模型的计算量增大。单个处理器由于计算速度、内存以及存储空间的限制,已经不能满足工程实际计算的需要。本文基于这一实际情况,提出Boussinesq方程的一个区域分解并行算法。本文首先回顾了Boussinesq方程在色散性、非线性和浅化性方面的改进,以及并行算法在CFD领域的发展及应用,并对并行算法的分类、并行程序性能评价方法及MPI作了介绍。在提出并行算法之前,本文先介绍了所选用的Boussinesq方程模型、方程的差分格式、数值造波方法、边界处理方法以及串行算法求解过程。本文的并行算法采用了区域分解法,x方向计算时采用有重叠的区域划分,y方向计算时采用无重叠的区域划分,并通过Schwarz迭代法实现子区域之间的耦合。由于两个方向计算时都沿同一方向划分,避免了计算时不断进行方向的转换。对三个典型物理模型试验的模拟结果表明并行计算结果与串行计算结果吻合得很好,和试验结果一致,由此验证并行算法的正确性。本文还分析了该并行算法的加速比和效率,并讨论了重叠区域大小对计算时间的影响。
论文目录
相关论文文献
- [1].关于Boussinesq型水波方程理论和应用研究的综述[J]. 海洋学报 2020(05)
- [2].Newly modified method and its application to the coupled Boussinesq equation in ocean engineering with its linear stability analysis[J]. Communications in Theoretical Physics 2020(11)
- [3].二维不可压Boussinesq方程组有限时间内的正则性[J]. 湖北大学学报(自然科学版) 2018(01)
- [4].Numerical study of edge waves using extended Boussinesq equations[J]. Water Science and Engineering 2017(04)
- [5].一类含源Boussinesq系统解的数值分析及仿真[J]. 应用数学和力学 2018(08)
- [6].Global Existence and Blow up for Damped Generalized Boussinesq Equation[J]. Acta Mathematicae Applicatae Sinica 2017(01)
- [7].修正的Boussinesq方程组的李对称分析、非线性自伴随及守恒律(英文)[J]. 应用数学 2017(04)
- [8].Soliton and rogue wave solutions of two-component nonlinear Schr?dinger equation coupled to the Boussinesq equation[J]. Chinese Physics B 2017(10)
- [9].超经典Boussinesq系统的守恒律和自相容源[J]. 数学杂志 2016(03)
- [10].三维Boussinesq方程在Morrey-Campanato空间的爆破准则[J]. 佳木斯大学学报(自然科学版) 2016(04)
- [11].Single Peak Soliton and Periodic Cusp Wave of the Generalized Schrodinger-Boussinesq Equations[J]. Communications in Theoretical Physics 2015(06)
- [12].Fully Nonlinear Boussinesq-Type Equations with Optimized Parameters for Water Wave Propagation[J]. China Ocean Engineering 2015(04)
- [13].An extended form of Boussinesq-type equations for nonlinear water waves[J]. Journal of Hydrodynamics 2015(05)
- [14].基于高精度Boussinesq方程模拟垂直挡板波浪爬升现象[J]. 黑龙江交通科技 2019(03)
- [15].Multiple Soliton Solutions of Alice–Bob Boussinesq Equations[J]. Chinese Physics Letters 2019(05)
- [16].On the Global Well-Posedness of 3-D Boussinesq System with Variable Viscosity[J]. Chinese Annals of Mathematics,Series B 2019(05)
- [17].一类Boussinesq方程解的局部存在性[J]. 辽宁工程技术大学学报(自然科学版) 2017(12)
- [18].Shallow-water sloshing motions in rectangular tank in general motions based on Boussinesq-type equations[J]. Journal of Hydrodynamics 2018(05)
- [19].一类Boussinesq方程的高精度紧致差分法[J]. 中国海洋大学学报(自然科学版) 2018(S2)
- [20].Boussinesq方程的破裂准则[J]. 西安文理学院学报(自然科学版) 2017(02)
- [21].A Remark on Persistence of Regularity for the Nonlinear Boussinesq System in Dimension Two[J]. 数学季刊(英文版) 2016(01)
- [22].Lump Solution of (2+1)-Dimensional Boussinesq Equation[J]. Communications in Theoretical Physics 2016(05)
- [23].CTE Solvability, Nonlocal Symmetry and Explicit Solutions of Modified Boussinesq System[J]. Communications in Theoretical Physics 2016(07)
- [24].Nonlocal Symmetries and Explicit Solutions of the Boussinesq Equation[J]. Chinese Annals of Mathematics(Series B) 2014(06)
- [25].一类超经典Boussinesq方程族的自相容源和守恒律(英文)[J]. 周口师范学院学报 2015(02)
- [26].一个新的三维Boussinesq方程的正则性准则[J]. 内蒙古师范大学学报(自然科学汉文版) 2015(02)
- [27].Existence and Asymptotic Behavior of Solution of Cauchy Problem for the Damped Sixth-order Boussinesq Equation[J]. Acta Mathematicae Applicatae Sinica 2015(03)
- [28].Revisiting study on Boussinesq modeling of wave transformation over various reef profiles[J]. Water Science and Engineering 2014(03)
- [29].受迫耗散Boussinesq方程的可积性质和孤波解的探讨[J]. 数学的实践与认识 2014(17)
- [30].Integrability Test and Spatiotemporal Feature of Breather-Wave to the (2+1)-Dimensional Boussinesq Equation[J]. Communications in Theoretical Physics 2013(06)