Numerical simulation of the hydrogen dispersion behavior by a parallel characteristic curve method. (English) Zbl 1474.76006

Yao, Qinghe; Pan, Xin; Zhu, Qingyong

Abstr. Appl. Anal. 2014, Article ID 583532, 8 p. (2014).

Summary: 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.

MSC:

76-10	Mathematical modeling or simulation for problems pertaining to fluid mechanics
76M99	Basic methods in fluid mechanics
65M25	Numerical aspects of the method of characteristics for initial value and initial-boundary value problems involving PDEs
76D05	Navier-Stokes equations for incompressible viscous fluids

Software:

ADVENTURE

References:

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