旋转火焰

固定磁场对旋转火焰旋转特性影响的研究

Study of effects of fixed magnetic field on rotating characteristics of fire whirl

磁场对旋转火焰涡量的影响（Ⅰ）

Study on the Vorticity of Fire Whirl Affected by a Magnetic Field ( I )

旋转火焰动力学特性的研究

Study on the Dynamic Characteristics of Fire Whirl

通过对磁场作用下旋转火焰涡量变化特性影响的研究，得到在不同的磁场作用时旋转火焰的旋转特性。

By studying the vorticity of fire whirl affected by a magnetic field , characteristics of fire whirl is obtained .

本质上，它是一般火羽流与周围环境涡量非线性相互作用产生的旋转火焰。

In essence , it is a swirling flame due to the nonlinear interaction between general fire plumes and vortices in the surroundings .

研究结果表明：磁场的作用会改变旋转火焰的旋转强度，使火焰的旋转强度降低；

The study shows that the magnetic field can change the vorticity intensity of a fire whirl , which decreases with the increase of the magnetic density .

通过磁场对油池旋转火焰燃烧特性影响的理论分析和实验研究，得到不同磁场强度对旋转火焰燃烧温度的影响程度，从而了解实际燃烧过程中旋转火焰在有磁场作用下的燃烧特性。

Based on the theoretic analysis and experimental study on the effects of the combustion characteristics for the fire whirl of oil-pound fire , the effect of the magnetic field on the temperature of the fire whirl was obtained .

蝙蝠车前引擎盖上的按钮被按下时捕获的恶棍，将部署旋转的火焰和爪。

The Batmobile has spinning flames and claw on the front that will deploy when the button on the hood is pressed-capturing the villains .

为消除炉膛出口烟温偏差，关键在于减轻炉膛出口烟气的残余旋转及缩短火焰长度。

In order to reduce the gas temperature deviation , the key is in reducing residual rotation and shortens the flame length .

磁场旋转方向对引发火焰旋转临界值的影响

Study on the Critical Rotating Speed of a Rotating Magnetic Field Inducing Fire Whirl

这样，就可以根据旋转磁场中旋转火焰的燃烧规律而了解实际火灾中火旋风的燃烧特性。

This can make us know more clearly about the burning rules of the fire whirl .

分析表明旋转环量使得火焰与燃料接触面积和燃料面实际面积都增加，从而导致燃烧速率增加。

It is clarified that flow circulation helps increase both the fuel-flame contact area and the actual fuel surface area , leading to the increase of burning rate .

旋转磁场引发的旋转火焰稳定性分析

An Analysis of Fire Whirl Stability in Magnetic Field