本文建立了管道预混火焰动态响应的理论模型。
In this paper, a comprehensive model for the response dynamics of premixed ducted bluff-body stabilized flame is developed.
预混火焰对声波扰动的谐波、分谐波和高阶谐波响应并存。
The harmonic, sub-harmonic and multi-harmonic response of the premixed flame to acoustic perturbation was observed.
本文研究网格湍流对射流剪切层以及建立在其中的预混火焰的影响。
The influence of grid turbulence on the shear layer of a jet and the premixed flames embedded in it was investigated in the present study.
研究了网格湍流的被动控制方式对射流剪切层以及相关预混火焰的影响。
The influence of passive control method of grid turbulence, on the shear layer of a jet and related premixed flames was investigated.
对于扩散火焰，高温区在OH带内侧；而对于预混火焰，二者基本一致。
The high temperature zone is at inner side of OH zone for the diffusion flame, but both zones are approximately at the same position for the premixed flame.
这说明网格湍流能够同时产生使剪切层中预混火焰强化和稳定两方面的效应。
This means that grid turbulence can at the same time have the two effects of enhancing and stabilizing the premixed flames in the shear of jets.
本文采用PDF方法对矩形燃烧室内钝体后的湍流预混火焰进行了数值模拟。
The PDF method has been applied to investigate the premixed turbulent reactive flows past bluff-body in a rectangle combustor.
利用化学反应动力学机理研究了甲烷-空气预混火焰添加H2的着火和燃尽特性。
This paper studied ignition and burnout characteristics of methane-air premixed flame with H2 added, using chemical reaction mechanism.
实验采用红外辐射测温法测出了多孔陶瓷燃烧器中预混火焰沿气流方向的温度分布曲线。
The temperature distribution in flow direction of a premixed flame in a porous ceramic combustor is experimentally being measured by infrared radiation.
在气体火焰的碳黑生成模型中，运用化学动力学来诠释在层流预混火焰中大分子芳香族烃的形成。
In the former one, the formation of high molecular weight aromatic species in premixed flames are explored by a detailed chemical kinetic mechanism.
用化学反应速率和温度分布随时间的变化情况详细描述了预混火焰在微型圆管中传播的三种情况。
These behaviors have been described in detail by the contours of rate of reaction and temperature at different time.
运用OH-PLIF方法探测了不同燃料系数和出口湍流度下甲烷/空气的锥形预混火焰的火焰前锋结构。
The flame front structures of the methane/air premixed flames are observed by using OH- PLIF method in the different conditions of equivalence ratio and inlet turbulence intensity.
在一端封闭、一端开口的火焰传播管中均匀布置障碍物，研究了障碍物结构对管道中预混火焰传播的影响。
The influence of the configuration of obstacles on premixed flame acceleration in a tube has been studied in this paper.
研究预混火焰在圆管或平行通道中的传播，对许多工业燃烧装置或系统的安全操作和实际应用都具有重要的意义。
It is very important to study the propagation of premixed flame in a round tube or parallel channels for the safe operation and application of many industrial combustion facilities and systems.
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.
建立湍流燃烧的“双流体”数学模型，用于一维湍流预混稳态火焰的描述。
The two-fluid mathematical model of turbulent combustion is built, which to depict steady state one -dimensional turbulent premixed flame.
根据发生炉煤气的特性，采用强制预混燃烧方式，设计了点火器的喷嘴、引射器及烧嘴，并对稳定火焰的方法也进行了研究。
This paper explained the design of nozzles, injectors and burner cones of new ignition with producer gas on forced pre-mixing and the method of flame stability.
研究了超声速预混可燃气流的温度以及当量比对超声速燃烧流场结构、点火与火焰传播特性的影响。
The effects of temperature and equivalence ratio of supersonic premixed combustible flow on the structure of supersonic combustion flow field, ignition and flame propagation were studied.
本文介绍一种测量分析甲烷-空气预混燃烧火焰成份及其浓度的方法，并划分出火焰的反应区、产物区和环境区。
This paper introduces a method of measure analysis of methane-air premixed combustion flame component and concentration, and divides reactive, productive and environmental areas of flame.
浓火焰燃烧形式为部分预混燃烧，淡火焰的燃烧形式为全预混燃烧。
The combustion form of rich flame is part-premixed combustion and lean flame is premixed combustion.
但是由于完全预混式燃烧器火焰短且温度高，增加了火焰向燃烧器的传热，造成燃烧器头部过热，使材料老化加快。
But the short flame and high temperature of fully aerated burners conduct more heat through burners and that causes the head of burners overheat and material the size and structure of burners.
利用钝体稳定火焰实验台，在不同工况下，测量了含水蒸汽的甲烷预混气的火焰吹熄速度。
By the experimental bench of bluff body flame and under different working orders, the speed in blowing out the flame of methane premixing gas with vapour is measured.
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.
多孔预混燃烧按火焰稳定位置可以分为表面稳定型和孔阵稳定型两类。
The porous premixed flame burner can be classified as two types according to standing-off distance: surface-stabilized flame and matrix-stabilized flame.
开发了一种新型的双色法火焰监测分析系统，并在一台燃气试验炉上对部分预混的甲烷-空气燃烧火焰进行了温度场的空间实时无干扰的测定演示。
A new type of two-color flame monitoring system is developed, and real-time, non-disturbed, spatial tests are performed on a partially premixed methane-air combustor of a gas-fired testing furnace.
此外，由燃烧驱动激波管产生的高温燃气作为引导火焰点燃激波风洞产生的预混与预热的超声速碳氢燃料——空气混合物。
In addition, a hot, burned gas generated from the shock tube was used as pilot flame for igniting the premixed and preheated supersonic hydrocarbon-air mixture generated in the shock tunnel.
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.
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.
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