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相关论文: High-order accurate well-balanced energy stable fi…

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This paper proposes high-order accurate well-balanced (WB) energy stable (ES) adaptive moving mesh finite difference schemes for the shallow water equations (SWEs) with non-flat bottom topography. To enable the construction of the ES…

数值分析 · 数学 2023-10-10 Zhihao Zhang , Junming Duan , Huazhong Tang

This paper develops the high-order accurate entropy stable (ES) finite difference schemes for the shallow water magnetohydrodynamic (SWMHD) equations.They are built on the numerical approximation of the modified SWMHD equations with the…

数值分析 · 数学 2025-03-21 Junming Duan , Huazhong Tang

This paper develops high-order accurate, well-balanced (WB), and positivity-preserving (PP) finite volume schemes for shallow water equations on adaptive moving structured meshes. The mesh movement poses new challenges in maintaining the WB…

数值分析 · 数学 2024-09-17 Zhihao Zhang , Huazhong Tang , Kailiang Wu

This paper develops the high-order entropy stable (ES) finite difference schemes for multi-dimensional compressible Euler equations with the van der Waals equation of state (EOS) on adaptive moving meshes. Semi-discrete schemes are first…

数值分析 · 数学 2024-07-09 Shangting Li , Huazhong Tang

This paper develops high-order accurate entropy stable (ES) adaptive moving mesh finite difference schemes for the two- and three-dimensional special relativistic hydrodynamic (RHD) and magnetohydrodynamic (RMHD) equations, which is the…

数值分析 · 数学 2022-02-28 Junming Duan , Huazhong Tang

This paper extends the high-order entropy stable (ES) adaptive moving mesh finite difference schemes developed in [14] to the two- and three-dimensional (multi-component) compressible Euler equations with the stiffened equation of state.…

数值分析 · 数学 2022-08-10 Shangting Li , Junming Duan , Huazhong Tang

This paper develops the high-order accurate entropy stable finite difference schemes for one- and two-dimensional special relativistic hydrodynamic equations. The schemes are built on the entropy conservative flux and the weighted…

数值分析 · 数学 2020-03-30 Junming Duan , Huazhong Tang

We present an energy/entropy stable and high order accurate finite difference (FD) method for solving the nonlinear (rotating) shallow water equations (SWEs) in vector invariant form using the newly developed dual-pairing and…

In this paper, we are concerned with the shallow water flow model over non-flat bottom topography by high-order schemes. Most of the numerical schemes in the literature are developed from the original mathematical model of the shallow water…

流体动力学 · 物理学 2019-12-19 Gang Li , Valerio Caleffi , Zhengkun Qi

All the existing entropy stable (ES) schemes for relativistic hydrodynamics (RHD) in the literature were restricted to the ideal equation of state (EOS), which however is often a poor approximation for most relativistic flows due to its…

数值分析 · 数学 2024-09-18 Linfeng Xu , Shengrong Ding , Kailiang Wu

For the two-layer shallow water equations, a high-order compact gas-kinetic scheme (GKS) on triangular mesh is proposed. The two-layer shallow water equations have complex source terms in comparison with the single layer equations. The main…

数值分析 · 数学 2023-06-08 Fengxiang Zhao , Jianping Gan , Kun Xu

This paper develops entropy stable (ES) adaptive moving mesh schemes for the 2D and 3D special relativistic hydrodynamic (RHD) equations. They are built on the ES finite volume approximation of the RHD equations in curvilinear coordinates,…

数值分析 · 数学 2021-01-08 Junming Duan , Huazhong Tang

High order finite volume schemes for conservation laws are very useful in applications, due to their ability to compute accurate solutions on quite coarse meshes and with very few restrictions on the kind of cells employed in the…

数值分析 · 数学 2020-01-30 Manuel J. Castro-Dìaz , Matteo Semplice

In this paper, high order semi-implicit well-balanced and asymptotic preserving finite difference WENO schemes are proposed for the shallow water equations with a non-flat bottom topography. We consider the Froude number ranging from O(1)…

数值分析 · 数学 2022-05-25 Guanlan Huang , Yulong Xing , Tao Xiong

In this paper, we propose a well-balanced fifth-order finite difference Hermite WENO (HWENO) scheme for the shallow water equations with non-flat bottom topography in pre-balanced form. For achieving the well-balance property, we adopt the…

数值分析 · 数学 2023-01-18 Zhuang Zhao , Min Zhang

We formulate a general criterion for the exact preservation of the "lake at rest" solution in general mesh-based and meshless numerical schemes for the strong form of the shallow-water equations with bottom topography. The main idea is a…

大气与海洋物理 · 物理学 2017-11-29 Alexander Bihlo , Scott MacLachlan

In this paper, we propose a new well-balanced fifth-order finite volume WENO method for solving one- and two-dimensional shallow water equations with bottom topography. The well-balanced property is crucial to the ability of a scheme to…

数值分析 · 数学 2024-11-19 Lidan Zhao , Zhanjing Tao , Min Zhang

In this work, we develop a new hydrostatic reconstruction procedure to construct well-balanced schemes for one and multilayer shallow water flows, including wetting and drying. Initially, we derive the method for a path-conservative finite…

数值分析 · 数学 2024-06-21 Patrick Ersing , Sven Goldberg , Andrew R. Winters

We develop a two-dimensional high-order numerical scheme that exactly preserves and captures the moving steady states of the shallow water equations with topography or Manning friction. The high-order accuracy relies on a suitable…

Shallow water moment equations are reduced-order models for free-surface flows that allow to represent vertical variations of the velocity profile at the expense of additional evolution equations for a number of additional variables, so…

数值分析 · 数学 2025-07-02 Mirco Ciallella , Julian Koellermeier
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