C. J. Wang, J. Wen, S. X. Lu and J. Guo (2012) Single-step chemistry model and transport coefficient model for hydrogen combustion. Journal/Science China-Technological Sciences 55 2163-2168. [In English]
Web link: http://dx.doi.org/10.1007/s11431-012-4932-4
Keywords: hydrogen combustion, singe-step chemistry model, transport coefficient, model
Abstract: To satisfy the needs of large-scale hydrogen combustion and explosion simulation, a method is presented to establish single-step chemistry model and transport model for fuel-air mixture. If the reaction formula for hydrogen-air mixture is H-2+0.5O(2)->, H2O, the reaction rate model is omega I double dagger = 1.13x10(15)[H-2][O-2]exp(-46.37T (0)/T) mol (cm(3) s)(-1), and the transport coefficient model is A mu=K/C (P)=rho D=7.0x10(-5) T (0.7) g (cm s)(-1). By using current models and the reference model to simulate steady Zeldovich-von Neumann-Doering (ZND) wave and free-propagating laminar flame, it is found that the results are well agreeable. Additionally, deflagration-to-detonation transition in an obstructed channel was also simulated. The numerical results are also well consistent with the experimental results. These provide a reasonable proof for current method and new models.