木条宽度越大，火焰传播速度越慢。
The speed of flame spreading decreases as width of the wood strips increases.
依据实验值得到了管内火焰传播速度的经验公式。
Empirical formula about flame propagation speed in tube is obtained.
讨论了在弱点火下点火能对瓦斯火焰传播速度的影响。
The effects of igniting energy for the methane flame propagating velocity with the weak igniting are discussed in the text.
计算出的分形维数是衡量湍流火焰传播速度以及爆炸强度的有效参数。
It can reflect the flame propagation speed and evaluate the explosion intension.
在所考察的实验条件下，粉尘浓度对于玉米粉尘火焰传播速度的影响不大。
For the present experimental conditions, it is found that the flame propagation velocity is a weak function of dust concentration in cornstarch dust clouds.
在管道长径比一定时，瓦斯爆炸火焰传播速度与点火能量呈二次函数关系。
When the pipeline length and diameter ratio was certain, the flame travel speed of gas explosion and ignition energy would be in a quadratic function relationship.
在实验的基础上，研究了外加电磁场对瓦斯爆炸过程中火焰传播速度和超压的影响。
On the basis of experiment, the influence of impressed electromagnetic field on fire transmission speed and overpressure in gas explosion was investigated.
在实验的基础上，研究了外加电磁场对瓦斯爆炸过程中火焰传播速度和超压的影响。
On the basis of experiments, the influence of impressed electromagnetic field on flame propagation speed and overpressure in gas explosion was investigated.
在试验的基础上，研究了瓦斯爆炸过程中壁面粗糙度对火焰传播速度和超压的影响。
On the basis of experiment, the influence of wall roughness on fire transmission and overpressure in gas explosion was investigated.
通过该系统测量爆震管中火焰传播速度的轴向分布，确定了爆燃到爆震的转捩距离。
This system was used to measure the flame propagation velocities along the tube, and furthermore to determine the DDT distance.
在试验的基础上，研究了瓦斯爆炸过程中壁面粗糙度对火焰传播速度和超压的影响。
On the basis of the experimental research, the significant influence of the wall roughness on the flame transmission law of the gas explosion was analyzed.
得出了二甲醚火焰传播速度与一次空气系数的关系曲线，并且在一次空气系数约为0。
The curve of relationship between flame speeds and the primary air ratio is got, and when primary air ratio is about 0.
在废气稀释情况下，燃烧时间延长，在高初始燃烧压力时，火焰传播速度下降更明显。
At the exhaust gas dilution condition, the burning duration is extended and the flame speed drops faster at high initial pressure than at low one.
在较高压力下火焰传播速度对环境压力不敏感，即火焰传播速度几乎不随着压力变化。
But in a higher ambient pressure, the flame-spread rates are independent of ambient pressure.
另外，各种条件下最大湍流火焰传播速度差别不大，说明室内气体火灾受湍流的影响较小。
In addition, the Max turbulent flame speed is similar in these cases, which means turbulent influence on the indoor fire caused by gas leakage is less.
结果表明：障碍物的存在极大的提高了瓦斯的火焰传播速度、最大爆炸压力及压力上升速率；
The results showed that the existence of the obstacles would highly increase the gas flame transmission velocity, the max explosion pressure and the pressure rising rate.
结果表明在低压下火焰传播的速度对环境压力敏感，即火焰传播速度随着压力的降低而降低。
The results show that flame-spread rates are sensitive to ambient pressure and decreases as the ambient pressure decreases in a lower range of ambient pressures.
结果表明：由于微细型腔外表面散热损失的增大，火焰传播速度减小，可燃浓度范围明显缩小。
The experimental results showed that the hydrogen concentration for the flammability limits decrease with the velocity of gas flow in the annular microchamber.
在理论上阐述了完全预混式燃烧器火焰稳定原理、燃烧的稳定性和影响火焰传播速度的几种因素。
The article elaborates on the theory of flame stability, combustion equilibrium, and some factors affecting flame propagation speed.
本文测量了不同直径的PMMA燃料棒在逆风和静止环境中的火焰传播速度、裂解长度和火焰形状。
In this paper the flame spreading rate (Vf), pyrolysis length (lp) and flame structure of PMMA fuel rod in an opposed air flow and quiescent environment were investigated.
通过运用自行设计的火焰加速系统，文章研究了立体结构障碍物对预混甲烷火焰传播过程中火焰传播速度和超压的影响。
The result shows that the barriers and plastic film used in the experiment have a great influence on the flame thickness.
从化学计量向贫燃料状态靠近时，预混火焰强度减弱，火焰传播速度减小，锥形火焰面逐渐增高，退到流速较低的下游区域；
When the CH4-air mixture approaches the lean fuel state, the flame speed accordingly decreases, the flame cone rising and retreating downstream to the area with lower flow speed.
利用激波预热燃料并采用高温燃气流作为引导火焰可以将碳氢燃料的点火延迟缩短，火焰传播速度加快，有效解决了碳氢燃料点火延迟过长的问题。
The problem of longer ignition delay for hydrocarbon fuel can be effectively solved by means of preheating fuel by shock waves and using hot gas as pilot.
此模型能根据实测的燃烧压力曲线计算出层流燃烧速度、已燃气火焰温度及火焰传播速度等参数随压力、当量比、发动机转速、点火提前角的变化规律。
The variation of combustion velocity, fired gas temperature and flame propagation speed, when the press, excess air ratio and ignition timing changed, was calculated by this quasi-dimensional model.
进气冲程缸内形成的流场状态直接影响发动机燃烧过程中火焰的传播速度、燃烧的稳定性以及燃烧是否彻底，进而也影响着发动机的功率。
The flow character in the intake process would affect the spreading velocity of the flame, the stability of the combustion and its combustion efficiency.
优化设计的燃烧室，加快了燃烧过程中火焰的传播速度，有效防止爆燃的产生，使活塞传热更加均匀，排放更低。
The optimized combustion chamber accelerates the transferring speed of the flame, prevent the deflagrating, even the heat transfer on the piston and lower the amount of the exhausting.
对障碍物在瓦斯煤尘燃烧爆炸过程中的火焰传播规律进行了实验研究，结果表明：障碍物对火焰的传播速度具有重要的影响。
Experimental study was conducted on the propagation regularity of flame in the process of gas and coal-dust combustion and explosion in the existence of obstacle objects.
管道分叉时，产生附加湍流，使瓦斯爆炸过程中火焰的传播速度迅速提高。
When the tube is biforked, the additional turbulent flow will be produced, which will improve the flame transmission speed in gas explosion.
该文对存在障碍物的瓦斯爆炸过程中的火焰传播规律进行了研究，结果表明：障碍物对火焰的传播速度具有重要影响。
Firedamp flame propagation rules under obstacles are researched during the gas explosion process. The results show that obstacles have an important affection to the gas flame propagation speed.
该文对存在障碍物的瓦斯爆炸过程中的火焰传播规律进行了研究，结果表明：障碍物对火焰的传播速度具有重要影响。
Firedamp flame propagation rules under obstacles are researched during the gas explosion process. The results show that obstacles have an important affection to the gas flame propagation speed.
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