نتایج جستجو برای: Finite Volume method (FVM)

تعداد نتایج: 2064466  

Journal: :international journal of marine science and engineering 2013
m. mojabi k. hejazi m. karimi

sedimentation is one of the most important problems in harbors that results in considerable economic costs. harbor planforms affects the flow pattern in the harbor basin and consequently, plays an important role in sediment transport and sedimentation. in the present study, a two dimensional depth-averaged hydrodynamic and sediment transport model has been developed to investigate the effect of...

2017
REINER VANSELOW

The paper is devoted to the convergence analysis of a well-known cell-centered Finite Volume Method (FVM) for a convection-difïusion problem in R. This FVM is based on Voronoi boxes and exponential fitting. To prove the convergence of the FVM, we use a new nonconforming PetrovGalerkin Finite Element Method (FEM) for which the System of linear équations coïncides completely with that of the FVM....

Journal: :J. Applied Mathematics 2013
Renwei Liu Dongjie Wang Xinyu Zhang Wang Li Bo Yu

Vorticity-stream function method and MAC algorithm are adopted to systemically compare the finite volume method (FVM) and finite difference method (FDM) in this paper. Two typical problems—lid-driven flow and natural convection flow in a square cavity—are taken as examples to compare and analyze the calculation performances of FVM and FDMwith variant mesh densities, discrete forms, and treatmen...

2014
Jian Li Xin Zhao Jianhua Wu Jianhong Yang Rafael Martinez-Guerra

This paper proposes and analyzes a stabilized finite-volume method FVM for the threedimensional stationary Navier-Stokes equations approximated by the lowest order finite element pairs. The method studies the new stabilized FVM with the relationship between the stabilized FEM FEM and the stabilized FVM under the assumption of the uniqueness condition. The results have three prominent features i...

2013
Hazim Bašić

The usage of the finite volume method (FVM) for calculation of bulk metal forming working pressure is described in this paper. FVM is applied on two-dimensional orthogonal grids and colocated variable arrangement. The application of the FVM is done in case of solving the plastic flow during extrusion processes with different boundary conditions. The method of involving of the most frequently us...

2012
S. Mishra S. MISHRA

A mathematical formulation of conservation and of balance laws with random input data, specifically with random initial conditions, random source terms and random flux functions, is reviewed. The concept of random entropy solution is specified. For scalar conservation laws in multi-dimensions, recent results on the existence and on the uniqueness of random entropy solutions with finite variance...

2013
Siddhartha Mishra Christoph Schwab Jonas Sukys

A mathematical formulation of conservation and of balance laws with random input data, specifically with random initial conditions, random source terms and random flux functions, is reviewed. The concept of random entropy solution is specified. For scalar conservation laws in multi-dimensions, recent results on the existence and on the uniqueness of random entropy solutions with finite variance...

In this paper the damage location in beam like-structure is determined using static and dynamic data obtained using finite volume method. The change of static and dynamic displacement due to damage is used to establish an indicator for determining the damage location. In order to assess the robustness of the proposed method for structural damage detection, three test examples including a static...

2007
Lucyna Brzozowska Krzysztof Brzozowski

In our paper we would like to present the computational model and programmes which enable calculations of the concentration of pollutants in underground garage caused by assumed scenarios of cars motion for given parameters of building geometry and ventilation. The finite volume method (FVM) has been applied in order to discretise the differential equations. Both problems: velocities of air dis...

Journal: :Epj Web of Conferences 2021

Additional to a behavior switching between solid-like and liquid-like, dense granular flows also present propagating grain size-dependent effects called non-local effects. Such behaviors cannot be efficiently modeled by standard rheologies such as µ( I )-rheology but have dealt with advanced models. Unfortunately, these models are still new used easily nor for various configurations. We propose...

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