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Numerical simulation model of laminar hydrogen/air diffusion flame

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2 Author(s)
Yu, Suyuan ; Institute of Nuclear Energy Technology, Tsinghua University, Beijing 100084, China ; Xuefeng, Lu

A numerical simulation model is developed for a laminar hydrogen/air diffusion flame. Nineteen species and twenty chemical reactions are considered. The chemical kinetics package (CHEMKIN) subroutines are employed to calculate species thermodynamic properties and chemical reaction rate constants. The flow field is calculated by simultaneously solving a continuity equation, an axial momentum equation and an energy equation in a cylindrical coordinate system. Thermal diffusion and Brownian diffusion are considered in the radial direction while they are neglected in the axial direction. The results suggest that the main flame is buoyancy-controlled.

Published in:

Tsinghua Science and Technology  (Volume:7 ,  Issue: 3 )