نتایج جستجو برای: artificial compressibility technique

تعداد نتایج: 879793  

Journal: :Asia Pacific journal of clinical nutrition 2018
Daniela Araújo Vitor Hugo Teixeira Pedro Carvalho Teresa F Amaral

BACKGROUND AND OBJECTIVES Skinfold thickness assessment is a widely recognized technique for the estimation of body adiposity and fat free mass. This method assumes that skinfolds' compressibility is constant but there are some factors that could influence its compressibility. This study aims to evaluate whether the skinfolds' compressibility is influenced by hydration status. METHODS AND STU...

2011
Z. H. Ma

A novel approach combining a two-fluid free surface solver and an efficient hybrid turbulence modelling technique has been presented for the simulation of breaking waves and their interaction with structures. The incompressible Navier-Stokes equations are solved by a cell centred finite volume method based on the artificial compressibility approach. The free surface (water/air interface) is tre...

Journal: :J. Applied Mathematics 2012
Wen-Hua Wang Huang Yi Yan-ying Wang

For better discussing and understanding the physical phenomena and body-fluid interaction of water-entry problem, here mechanical-energy transport wedge, fluid, and each other of water-entry model for free falling wedge is studied by numerical method based on free surface capturing method and Cartesian cut cell mesh. In this method, incompressible Euler equations for a variable density fluid ar...

2006
Hans Petter Langtangen Ragnar Winther

We present an overview of the most common numerical solution strategies for the incompressible Navier–Stokes equations, including fully implicit formulations, artificial compressibility methods, penalty formulations, and operator splitting methods (pressure/velocity correction, projection methods). A unified framework that explains popular operator splitting methods as special cases of a fully ...

Journal: :Journal of Al-Qadisiyah for computer science and mathematics 2017

Journal: :International Journal for Numerical Methods in Biomedical Engineering 2010

Journal: :Computers & Fluids 2022

Several competing artificial compressibility methods for the incompressible flow equations are examined using high-order flux reconstruction method. The established method (ACM) of \citet{Chorin1967} is compared to alternative entropically damped (EDAC) \citet{Clausen2013}, as well an ACM formulation with hyperbolised diffusion. While former requires solution be converged a divergence free stat...

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