论文标题
基于流体动力的基于基于核心的方法,用于蜡烛火的振荡和耦合
An Hydrodynamic-Instabililty Based Approach towards the Oscillation and Coupling of Candle Flames
论文作者
论文摘要
在某些情况下,可以在蜡烛火焰中观察到振荡。从理论上讲,这项研究提出了一种基于流体动力 - 稳定的方法来振荡火焰的振荡和耦合,声称可见火焰是射流流量的一部分:层流,波浪,波浪和湍流。在普通的稳定燃烧中,可见火焰处于层流阶段,而在这些振荡的情况下,它处于表面波阶段。相结合的耦合被解释为两个射流流合并为一个,并且在互通不可用时发生反相耦合。进行了Schlieren图像实验,频率测量实验和一些“干扰”实验以支持此观点。还提出了数学模型进行描述。
Oscillation can be observed in candle flames under certain circumstances. This research theoretically proposed an hydrodynamic-instability-based approach towards the oscillation and coupling of candle flames, claiming that the visible flame is part of a jet flow undergoing three stages: laminar, wave, and turbulence. In the ordinary stable combustion the visible flame is in the laminar stage, while under these oscillating circumstances it is in the surface wave stage. In-phase coupling was explained as two jet flows merging into one, and anti-phase coupling occur when mergence becomes unavailable. The Schlieren image experiments, frequency measuring experiments and some "disturbance" experiments were conducted to support this view. Mathematical models were also proposed for description.