单个铝颗粒及铝颗粒群点火燃烧研究进展

Research progress on ignition and combustion of single aluminum particle and aluminum particle group

以铝为代表的金属颗粒燃料具有燃烧热值高、存储稳定性好、产物无毒等优点,在军用和民用领域具有广阔的应用前景。从单个铝颗粒点火燃烧和铝颗粒群点火燃烧两方面综述相关领域的研究进展,梳理了单个铝颗粒燃烧的理论研究和数值模拟方法发展历程和发展动态。从实验研究、理论模型和数值模拟三方面重点介绍了铝颗粒群燃烧的研究现状,指出建立能兼顾计算精度和计算成本的铝颗粒点火燃烧子模型是提高含铝颗粒燃烧室优化设计的关键。论文第三部分介绍了基于化学建表的固体颗粒燃料燃烧数值模拟方法及该方法在铝颗粒燃烧中的最新应用。最后,指出铝颗粒群燃烧研究中亟待解决的问题。

The metal particle fuel represented by aluminum has the advantages of high energy density,non-reactivity during mixing and storage,and non-toxic products,which has broad application prospects in military and civilian fields.The research progress in related field was reviewed from two aspects:ignition and combustion of single aluminum particle and aluminum particle group.The development history and status of theoretical research and numerical simulation of single aluminum particle combustion are summarized.The combustion progress of aluminum particle group was emphatically introduced from three aspects:experimental investigation,theoretical model and numerical simulation,and it is pointed out that establishing aluminum particle combustion sub-model which can take into account both calculation accuracy and cost is the key to improving the optimal design of the combustion chamber containing aluminum particles.The numerical simulation method of solid particle fuel combustion based on chemical flamelet tabulation was introduced in the third part of this paper,as well as the latest application of this method in the combustion of aluminum particles.Finally,the urgent problems to be solved in the aluminum particle group combustion research were pointed out.