scholarly journals Multiscale method based on coupled lattice‐Boltzmann and Langevin‐dynamics for direct simulation of nanoscale particle/polymer suspensions in complex flows

2019 ◽  
Vol 91 (5) ◽  
pp. 228-246 ◽  
Author(s):  
Zixiang Liu ◽  
Yuanzheng Zhu ◽  
Jonathan R. Clausen ◽  
Jeremy B. Lechman ◽  
Rekha R. Rao ◽  
...  
Keyword(s):  
Lattice Boltzmann ◽  
Langevin Dynamics ◽  
Multiscale Method ◽  
Direct Simulation ◽  
Complex Flows ◽  
Nanoscale Particle

Numerical Methods for the Kinetic Theory of Fluids

2018 ◽  
Author(s):  
Sauro Succi
Keyword(s):  
Molecular Dynamics ◽  
Monte Carlo ◽  
Numerical Methods ◽  
Kinetic Theory ◽  
Computational Efficiency ◽  
Lattice Boltzmann ◽  
Direct Simulation Monte Carlo ◽  
Particle Methods ◽  
Direct Simulation ◽  
Simulation Monte Carlo

This chapter provides a bird’s eye view of the main numerical particle methods used in the kinetic theory of fluids, the main purpose being of locating Lattice Boltzmann in the broader context of computational kinetic theory. The leading numerical methods for dense and rarified fluids are Molecular Dynamics (MD) and Direct Simulation Monte Carlo (DSMC), respectively. These methods date of the mid 50s and 60s, respectively, and, ever since, they have undergone a series of impressive developments and refinements which have turned them in major tools of investigation, discovery and design. However, they are both very demanding on computational grounds, which motivates a ceaseless demand for new and improved variants aimed at enhancing their computational efficiency without losing physical fidelity and vice versa, enhance their physical fidelity without compromising computational viability.

Simulation of Hypersonic Viscous Flow Past a 2D Circular Cylinder Using Lattice Boltzmann Method

2010 ◽  
Author(s):  
R. Kamali ◽  
A. H. Tabatabaee Frad
Keyword(s):  
Circular Cylinder ◽  
Lattice Boltzmann Method ◽  
Lattice Boltzmann ◽  
High Speed ◽  
Fluid Flows ◽  
Boltzmann Distribution ◽  
Equilibrium Distribution Function ◽  
Complex Flows ◽  
Compressible Viscous Flows ◽  
Boltzmann Method

It is known that the Lattice Boltzmann Method is not very effective when it is being used for the high speed compressible viscous flows; especially complex fluid flows around bodies. Different reasons have been reported for this unsuccessfulness; Lacking in required isotropy in the employed lattices and the restriction of having low Mach number in Taylor expansion of the Maxwell Boltzmann distribution as the equilibrium distribution function, might be mentioned as the most important ones. In present study, a new numerical method based on Li et al. scheme is introduced which enables the Lattice BoltzmannMethod to stably simulate the complex flows around a 2D circular cylinder. Furthermore, more stable implementation of boundary conditions in Lattice Boltzmann method is discussed.

Direct Simulation of Fluid Transport at Solid Interfaces with a Multiscale Lattice-Boltzmann Finite-Volume Method

2004 ◽  
Vol 14 (1) ◽  
pp. 12-21
Author(s):  
R. Rotondi ◽  
S. Succi ◽  
G. Bella
Keyword(s):  
Finite Volume Method ◽  
Finite Volume ◽  
Lattice Boltzmann ◽  
Fluid Transport ◽  
Transport Phenomena ◽  
Direct Simulation ◽  
Empirical Correlations ◽  
Local Refinement ◽  
Combined Use ◽  
Volume Method

Abstract It is shown that the combined use of a mesoscopic lattice Boltzmann solver with finite-volume techniques, both enriched with local-refinement (multiscale) capabilities, permits to describe transport phenomena at fluid-solid interfaces to a degree of detail which may help dispensing with empirical correlations.

Direct simulation of edge-tones by the finite difference lattice Boltzmann method

2004 ◽  
Vol 2004.7 (0) ◽  
pp. 69-70
Author(s):  
Michihisa TSUTAHARA ◽  
Takeshi KATAOKA ◽  
Akinori TAMURA ◽  
Kenji SHIKATA
Keyword(s):  
Finite Difference ◽  
Lattice Boltzmann Method ◽  
Lattice Boltzmann ◽  
Direct Simulation ◽  
Boltzmann Method
Sign in / Sign up

Export Citation Format

Share Document