Current Status and Prospects of Research on the Leakage and Explosion Characteristics of Hydrogen Energy Vehicles in Confined Space
In order to investigate the current research status of the leakage and explosion characteristics of hydrogen energy vehicles in confined space,using the method of literature research,the current status of research on jet fire and leak point explo-sion of hydrogen energy vehicles in confined space was discussed from the perspectives of simulation analysis and experimental re-search.For the characteristics of hydrogen jet fire in confined space,numerical simulation study revealed the behavior of hydro-gen jet fire under different ventilation conditions,leakage angles,and leakage rates,the distribution law of characteristic parame-ters was also analyzed.However,the experimental study of hydrogen jet fire in confined space was extremely scarce.In addition,regarding the explosion characteristics of hydrogen leakage in confined space,both simulation and experimental studies empha-sized the influence of hydrogen concentration,release rate,and confinement degree on the propagation of explosion pressure waves.Finally,the article proposed prospects for the future research on the leakage and combustion explosion characteristics of hydrogen energy vehicles in confined space.It is suggested that in the future,experimental research,numerical simulation,and theoretical analysis methods should be combined to establish temperature and pressure distribution model,safety distance predic-tion model,and ventilation suppression model,etc.for hydrogen energy vehicle leakage and explosion in confined space.