气相氛围中悬浮粉末燃料爆震燃烧研究进展

摘要

In order to study the propagation characteristics of the detonation wave of the powder fuel in the atmosphere of the gaseous oxidizer and F/O mixture,the experiments and numerical calculations of the detonation of the powder fuel suspended in the gaseous atmosphere are reviewed.The critical factors which conduct influences on the wave velocity,stability,propagation mode,detailed structure and cell size of the detonation wave are concluded.Meanwhile the examples of application of the detonation engine or combustor with powder fuel are introduced.The experimental setups,combustion diagnose measurements and numerical simulation methods are summarized and analyzed in terms of the characteristics of the powder detonation.Finally,the next work to make powder fuel detonation engine more practical is estimated.%针对在氧化性气相氛围以及在燃料/氧化剂混合气相氛围中粉末燃料爆震燃烧波的传播特性,总结了气相氛围中悬浮粉末燃料爆震燃烧的实验和数值模拟研究进展,归纳了影响爆震波速度、稳定性、传播模式、细观结构和胞格尺寸的主要因素.同时,还介绍了粉末燃料应用于爆震发动机或燃烧室的案例;结合粉末爆震自身特点对实验装置和燃烧诊断测试手段和数值模拟方法进行总结分析;最后针对下一步需要开展的研究工作进行展望.