Direct Simulation (Monte Carlo) of two dimensional vortex streets

1998 ◽  
Author(s):  
Justin Talbot-Stern ◽  
Douglass Auld
Keyword(s):  
Monte Carlo ◽  
Direct Simulation Monte Carlo ◽  
Two Dimensional ◽  
Direct Simulation ◽  
Vortex Streets ◽  
Simulation Monte Carlo

Two-Dimensional Unstructured Direct Simulation Monte Carlo Method for Micro/Nanochannel Gas Flows

2009 ◽  
Author(s):  
Mehrdad Raisee ◽  
Mahmood Mohammadi Shad ◽  
Seyyed Mostafa Hosseinalipoor ◽  
Samaneh Farokhirad
Keyword(s):  
Monte Carlo ◽  
Gas Dynamics ◽  
Direct Simulation Monte Carlo ◽  
Molecular Gas ◽  
Gas Flows ◽  
Two Dimensional ◽  
Direct Simulation ◽  
Heat Transfer Characteristics ◽  
Flow And Heat Transfer ◽  
Simulation Monte Carlo

In this paper, the fluid flow and heat transfer characteristics of two-dimensional micro/nanochannel flows are examined. The Direct Simulation Monte Carlo (DSMC) method for molecular gas dynamics is utilized to simulate the gas flows through two-dimensional micro/nanochannel. The collision process has been treated in a statistical way using the no-time-counter (NTC) scheme and the variable hard sphere (VHS) model has been employed to simulate the collision from the kinetic viewpoint. Results revealed that the temperature and velocity distributions have an unequalled behavior and may have a significant effect on the advancement and the design of MEMS and NEMS.

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.

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