نتایج جستجو برای: guo incompressible lattice boltzmann method

تعداد نتایج: 1726177  

Journal: :J. Comput. Physics 2010
S. C. Fu R. M. C. So Wallace Woon Fong Leung

With the advent of state-of-the-art computers and their rapid availability, the time is ripe for the development of efficient uncertainty quantification (UQ) methods to reduce the complexity of numerical models used to simulate complicated systems with incomplete knowledge and data. The spectral stochastic finite element method (SSFEM) which is one of the widely used UQ methods, regards uncerta...

Journal: :Physical review. E, Statistical, nonlinear, and soft matter physics 2014
Rupert W Nash Hywel B Carver Miguel O Bernabeu James Hetherington Derek Groen Timm Krüger Peter V Coveney

Modeling blood flow in larger vessels using lattice-Boltzmann methods comes with a challenging set of constraints: a complex geometry with walls and inlets and outlets at arbitrary orientations with respect to the lattice, intermediate Reynolds (Re) number, and unsteady flow. Simple bounce-back is one of the most commonly used, simplest, and most computationally efficient boundary conditions, b...

1995
Marc B. Reider James D. Sterling

Two discretizations of a 9-velocity Boltzmann equation with a BGK collision operator are studied. A Chapman-Enskog expansion of the PDE system predicts that the macroscopic behavior corresponds to the incompressible Navier-Stokes equations with additional terms of order Mach number squared. We introduce a fourth-order scheme and compare results with those of the commonly used lattice Boltzmann ...

Naghavi, S.M., Sheikhzadeh, G.A. ,

Lattice Boltzmann method is one of computational fluid dynamic subdivisions. Despite complicated mathematics involved in its background, end simple relations dominate on it; so in comparison to the conventional computational fluid dynamic methods, simpler computer programs are needed. Due to its characteristics for parallel programming, this method is considered efficient for the simulation of ...

Journal: :Physica A: Statistical Mechanics and its Applications 2004

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