We address an original approach for the convergence analysis of a finite-volume scheme for the approximation of a stochastic diffusion-convection equation with multiplicative noise in a bounded domain of $\mathbb{R}^d$ (with $d=2$ or $3$) and with homogeneous Neumann boundary conditions. The idea behind our approach is to avoid using the stochastic compactness method. We study a numerical scheme that is semi-implicit in time and in which the convection and the diffusion terms are respectively approximated by means of an upwind scheme and the so called two-point flux approximation scheme (TPFA). By adapting well-known methods for the time discretization of stochastic PDEs and combining them with deterministic techniques applied to spatial discretization, we show strong convergence of our scheme towards the unique variational solution of the continuous problem in $L^p(0,T;L^2(Ω;L^2(Λ)))$, for any finite $p\geq 1$.
A finite volume method on general meshes for a degenerate parabolic convection-reaction-diffusion equation
EDF R&D(法国电力集团研发部);Laboratoire de Mathématiques, Université de Paris-Sud 11(巴黎第十一大学数学实验室);CNRS and Laboratoire de Mathématiques, Université de Paris-Sud 11(法国国家科学研究中心及巴黎第十一大学数学实验室)
Convergence of the Finite Volume Method for scalar conservation laws with multiplicative noise: an approach by kinetic formulation
Aix-Marseille Université, CNRS, Centrale Marseille, I2M(艾克斯-马赛大学);Univ Lyon, Université Claude Bernard Lyon 1, CNRS UMR 5208, Institut Camille Jordan(里昂大学,克莱贝尔·里昂第一大学)
Implementation of a Volume-of-Fluid Method in a Finite Element Code with Applications to Thermochemical Convection in a Density Stratified Fluid in the Earth's Mantle
Department of Mathematics, U. C. Davis(加州大学戴维斯分校数学系)
A collocated finite volume scheme to solve free convection for general non-conforming grids
Université Paris-Est(巴黎东大学);Laboratoire Modélisation et Simulation Multi Echelle, MSME FRE3160 CNRS(多尺度建模与模拟实验室,MSME FRE3160 法国国家科学研究中心);Université de Provence(普罗旺斯大学)
A finite volume scheme for boundary-driven convection-diffusion equations with relative entropy structure
Institut de Mathématiques de Toulouse, Université Toulouse III & Institut Universitaire de France(图卢兹数学研究所,图卢兹第三大学 & 法国高等研究院);Institut Camille Jordan, Université Claude Bernard Lyon 1, CNRS UMR 5208(卡米尔·若尔当研究所,里昂第一大学,法国国家科学研究中心)
A compact fourth-order doubly conservative active flux method with maximum-principle-preserving limiting for degenerate convection--diffusion equations
School of Science and Engineering, The Chinese University of Hong Kong (Shenzhen)(香港中文大学(深圳)理工学院)
Artificial diffusion for convective and acoustic low Mach number flows II: Application to Liou-Steffen, Zha-Bilgen and Toro-Vasquez convection-pressure flux splittings
Liou-Steffen分裂(AUSM)格式在低马赫数模拟中很受欢迎,然而,与许多可压缩流的数值格式一样,它们需要仔细修改以精确地解决该区域的对流特性。以前的分析,这些计划通常只集中在一个单一的离散计划在对流限制,只考虑流动与声学效应的经验,如果在所有。在我们最近的论文Hope-Collins & di Mare(2023)中,我们推导出了对低马赫数格式的人工扩散标度的约束条件,这些约束条件适用于有和没有声学效应的流动,并将这一分析应用于Roe型有限体积格式。在本文中,我们形成近似的扩散矩阵的Liou-Steffen分裂,以及密切相关的Zha-Bilgen和Toro-Vasquez分裂。我们使用Hope-Collins & di Mare,2023中的约束条件,推导并分析了低马赫数时每个分裂所需的标度。通过将扩散矩阵转换为熵变量,我们可以识别与Hope-Collins & di Mare,2023中使用的理想形式相比错误的扩散项。这些项在Liou-Steffen分裂中渐近消失,但在Zha-Bilgen和Toro-Vasquez分裂中会产生虚假的熵,除非使用特定形式的界面压力。声学和对流的数值例子验证了分析的结果,并显示了评估这种类型的计划时,考虑熵场的分辨率的重要性。