نتایج جستجو برای: vof method

تعداد نتایج: 1630549  

2017
Pierre Horgue Marc Prat Michel Quintard

A penalization approach is presented to simulate two-phase flow in the presence of immersed solid boundaries so as to consider highly complex objects such as porous media microstructures. Based on the standard Volume-Of-Fluid formulation, the method takes into account the wettability effects which may occur on the surface of immersed solid boundaries. A spatial shift between the no-slip and the...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2014
Jason D Yeatman Kevin S Weiner Franco Pestilli Ariel Rokem Aviv Mezer Brian A Wandell

The vertical occipital fasciculus (VOF) is the only major fiber bundle connecting dorsolateral and ventrolateral visual cortex. Only a handful of studies have examined the anatomy of the VOF or its role in cognition in the living human brain. Here, we trace the contentious history of the VOF, beginning with its original discovery in monkey by Wernicke (1881) and in human by Obersteiner (1888), ...

Journal: :international journal of maritime technology 0
saeed booshi 424 hafez avenue,, tehran-iran, mohammad javad ketabdari 424 hafez avenue,, tehran-iran,

in this paper wave transformation in a submerged sloped breakwater and its hydraulic performance was simulated by developing a numerical model in fortran. the code was established by combining porous flow and a two-phase model using vof method. modified navier-stokes and k-ε equations implemented to the model to simulate the flow in porous media. cut cell method was modified to simulate fluid t...

2010
Satoshi Xiaobo Gong Kazuyasu Sugiyama Jinbiao Wu Huaxiong Huang Shu Takagi

A novel full Eulerian fluid-elastic membrane coupling method on the fixed Cartesian coordinate mesh is proposed within the framework of the volume-of-fluid approach. The present method is based on a full Eulerian fluid-(bulk) structure coupling solver (Sugiyama et al., J. Comput. Phys., 230 (2011) 596–627), with the bulk structure replaced by elastic membranes. In this study, a closed membrane ...

Journal: :JAPANESE JOURNAL OF MULTIPHASE FLOW 2019

2005
S. P. van der Pijl A. Segal C. Vuik

In this work incompressible two-phase flows are considered. The aim is to model high density-ratio flows with arbitrary complex interface topologies, such as occur in air/water flows. Between the phases a sharp front exists, where density and viscosity change abruptly. The computational method used in this paper is the mass conserving level-set method. It is based on the level-set methodology, ...

2011
Seok-Won Kang Debjyoti Banerjee

In this study we implemented the network simulation techniques using macromodels (lumped models) for capillary driven flows in microfluidic networks. The flow characteristics in a flow junction, such as meniscus stretching and bifurcation, were studied and their effects on filling time as well as pressure drop were explored for various network configurations. The results from the network simula...

2011
M. J. Ketabdari H. Saghi

In this study the developed procedure of Advection in Volume of Fluid (VOF) method for free surface modeling is presented. Two-step projection method is implemented for solution of RANSE equations discretized by finite difference method on the staggered and Cartesian grids. Applying Youngs’ algorithm in staggered grids, assuming that fluid particles in the cell have the same velocity of the cel...

2007
S.Mohammad Mousavi Arezou Jafari Soheila Yaghmaei Manouchehr Vossoughi Ilkka Turunen Mohammad Reza Kamali Pertti Sarkomaa

In this study, some important variables in the bioleaching, such as ferric and zinc ions concentration in the liquid phase and velocity field around a single particle were simulated. Volume of fluid (VOF) method was used to predict the mentioned fields in a 3D geometry. Results show that VOF is a successful approach for prediction of velocity and concentration fields. The computational model ha...

Journal: :Cortex; a journal devoted to the study of the nervous system and behavior 2017
Kevin S Weiner Jason D Yeatman Brian A Wandell

This letter aims to clarify the definitions of the posterior arcuate fasciculus (pAF) and the vertical occipital fasciculus (VOF). These two tracts are of interest in many different fields, including the neuroscience of language (Catani, Jones, & ffytche, 2005), post-mortem dissection (Vergani, Mahmood, Morris, Mitchell, & Forkel, 2014), reading (Thiebaut de Schotten, Cohen, Amemiya, Braga, & D...

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