火焰脉动在火灾领域相关研究进展

为研究火焰脉动在火灾领域相关研究进展，总结了不同燃料类型的火焰脉动形成机理，较为详细地介绍了火焰脉动现象研究中常用的脉动频率测量方法，列举了LDV、TDLAS、自由基团高频采集等新方法；介绍了池火脉动、射流/羽流气体火脉动在不同燃烧器尺寸，不同外部环境和不同燃料比等影响因素方面的研究内容与进展；对常见的3种不同的火焰脉动模型进行描述和归类；对火焰脉动的规律、机理等在火灾领域的早期识别和检测中的作用、特殊条件对于火焰脉动频率的影响和更加精细的火焰脉动模型的研究等方向提出展望。

Research progress on flame pulsation in fire field

To study the relevant research progress of flame pulsation in the fire field, the formation mechanism of flame pulsation under different fuel types were summarized, then the measurement methods of pulsation frequency based on the flame. morphological characteristics, which had been used most commonly in the research of flame pulsation phenomenon, were introduced in detail, and several new methods such as LDV, TDLAS, and high-frequency collection of free radicals were listed and introduced. There search contents and progress in the aspects of Pool fire pulsation, jet/plume gas fire pulsation in different burner sizes, different external environments and different fuel ratios and other influencing factors, and soon were introduced. Three different common models of flame pulsation were described and classified. The prospects were proposed in the directions about the early identification and detection of flame pulsation in the fire field, the influence factors of special conditions on the flame pulsation, and the research on more detailed model of flame pulsation.