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Abstract and Applied Analysis
Volume 2014 (2014), Article ID 583532, 8 pages
http://dx.doi.org/10.1155/2014/583532
Research Article

Numerical Simulation of the Hydrogen Dispersion Behavior by a Parallel Characteristic Curve Method

1School of Engineering, Sun Yat-Sen University, Guangzhou 510275, China
2School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou 510006, China

Received 8 December 2013; Accepted 29 December 2013; Published 11 February 2014

Academic Editor: Hossein Jafari

Copyright © 2014 Qinghe Yao et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

A parallel characteristic curve method is applied in domain decomposition system to simulate the dispersion behavior of hydrogen in this work. The characteristic curve method is employed to approximate the Navier-Stokes equations and the convection diffusion equation, and the feasibility of solving complex multicomponent flow problems is demonstrated by the numerical simulation of hydrogen dispersion in a partially open space. An analogy of the Boussinesq approximation is applied and numerical results are validated by comparing them with the experimental data. The dilution effect of ventilation is investigated. The transient behavior of hydrogen and the process of accumulation in the partially open space are discussed.