نتایج جستجو برای: fvm method

تعداد نتایج: 1630184  

2004
Marius STOIA-DJESKA

This paper presents the development of an algorithm based on the discontinuous Galerkin finite element method (DGFEM) for the Euler equations of gas dynamics. The DGFEM is a mixture of a finite volume and finite element method. In the DGFEM the unknowns in each element are locally expanded in a polynomial series and thus the information about the flow state at the element faces can be directly ...

Journal: :Processes 2021

A three-dimensional numerical study of a single droplet splashing vertically on liquid film is presented. The method based the finite volume (FVM) Navier–Stokes equations coupled with fluid (VOF) method, and adaptive local mesh refinement technology adopted. It enables liquid–gas interface to be tracked more accurately, less computationally expensive. relationship between diameter free rim, hei...

S. E. Razavi, S. Ezazi

The aim of this paper is to give a detailed effect of several parameters such as step height, Reynolds number, contraction ratio, and temperature difference between the entrance and solid boundaries, of a forward-facing step. An accurate length of separation and reattachment zones are achieved. A finite-volume method (FVM) has been developed to study incompressible flow in a forward-facing step...

2012
Aleksandra Rashkovska Roman Trobec Matjaž Depolli Gregor Kosec

Computational modelling has received significant attention in the research community over the past few decades due to its pronounced contribution in better understanding of the nature, as well as in the development of advanced technologies. The modelling of more and more complex transport physical systems helps the community to address important issues, like identification of environmental prob...

2004
R. Martin C. Ortiz-Aleman J. C. Gamio S. Muñoz-Gonzalez

In this work we apply the simulated annealing (SA) inversion method to the reconstruction of permittivity images from electrical capacitance tomography (ECT) data. We test the SA inversion method using static physical models simulating some typical distribution patterns of two and three-component flows. The SA-based permittivity inversions have some advantages over other approaches based on lin...

2004
Pablo A. Tarazaga

The research presented in this thesis addresses the problem of updating an analytical model using a parametric Reference Basis approach. In this method, some parameters are assumed to be accurate (e.g. natural frequencies, mode shapes and mass matrix), while others are adjusted so that the eigenvalue equation is satisfied. Updating is done with the use of principal submatrices, and the method s...

Journal: :J. Comput. Physics 2012
Marc R. J. Charest Clinton P. T. Groth Ömer L. Gülder

The discrete ordinates method (DOM) and finite-volume method (FVM) are used extensively to solve the radiative transfer equation (RTE) in furnaces and combusting mixtures due to their balance between numerical efficiency and accuracy. These methods produce a system of coupled partial differential equations which are typically solved using spacemarching techniques since they converge rapidly for...

Journal: :Journal of advanced thermal science research 2021

Convective heat transfer and friction factor properties for periodic undulating channels are numerically investigated. The finite volume method (FVM) was used in the numerical study. Three different Reynolds averaged simulation (RANS) based turbulence models, shear stress transport SST k-ω transition model were compared with each other. Two used; first geometry is a sharp corrugated channel 30°...

2009
Filip Pizlo Lukasz Ziarek Jan Vitek

Real-time Java is emerging as a platform for building mission-critical embedded systems. The real-time variants of Java, including [3], [4], are attractive alternatives to Ada and C as they provide a cleaner, simpler, and safer programming model. Unfortunately, current real-time Java implementations have trouble scaling down to very hard realtime embedded settings, where memory is scarce and pr...

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