Simulation of unsteady flows by the DSMC macroscopic chemistry method

نویسندگان
چکیده

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Simulation of unsteady flows by the DSMC macroscopic chemistry method

In the Direct Simulation Monte Carlo method, a combination of statistical and deterministic procedures applied to a finite number of ‘simulator’ particles are used to model rarefied gas-kinetic processes. Traditionally, chemical reactions are modelled using information from specific colliding particle pairs. In the Macroscopic Chemistry Method (MCM), the reactions are decoupled from the specifi...

متن کامل

Non-equilibrium Reaction Rates in the Macroscopic Chemistry Method for Dsmc Calculations

The Direct Simulation Monte Carlo (DSMC) method is used to simulate the flow of rarefied gases. In the Macroscopic Chemistry Method (MCM) for DSMC, chemical reaction rates calculated from local macroscopic flow properties are enforced in each cell. Unlike the standard total collision energy (TCE) chemistry model for DSMC, the new method is not restricted to an Arrhenius form of the reaction rat...

متن کامل

Application of DSMC method to astrophysical flows

The Direct Simulation Monte Carlo (DSMC) method, developed originally to calculate rarefied gas dynamical problems, is applied to continuous flow including shocks assuming that the Knudsen number is sufficiently small. In particular, we study the formation of spiral shocks in the accretion disc of a close binary system. The method involves viscosity and thermal conduction automatically, and can...

متن کامل

Numerical Simulation of Unsteady Flows using Unstructured Grid Method

1. Introduction A great variety of flows with importance to practical engineering applications are inherently unsteady and virtually all of the Newtonian fluid flows in nature are turbulent. Therefore, it is natural and unavoidable to deal with unsteady turbulent flows when Computational Fluid Dynamics (CFD) techniques are applied to engineering design and industrial use. CFD for general fluid ...

متن کامل

DISTRIBUTED SIMULATION of TRANSITIONAL NANOSCALE CHANNEL FLOWS by a DSMC METHOD with an ENHANCED RELIABILITY

By distributed simulations on several parallel clusters low flow velocities were resolved. Through application of a hybrid technique important features of a complex channel flow for Winchester-type disc storage devices were established. The two new developed fault tolerant algorithmic procedures for diminishing bad consequences of possible node and link failures increased reliability of such di...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Journal of Computational Physics

سال: 2009

ISSN: 0021-9991

DOI: 10.1016/j.jcp.2008.09.006