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- Impinging jet flame 对撞射流火焰
- Investigations on an impinging jet under the influence of crossflow are carried out in this dissertation. 本文的研究对象为受横流影响的冲击射流。
- The swirling strength method was used to investigate the vortex structure of an impinging jet. 该文采用旋涡强度方法对冲击射流涡结构进行了深入研究。
- A turbulent coal jet flame is employed to simulate the rapid devolatilization of pulverized coal in practical coal combustion. 采用湍流煤粉射流火焰模拟实际工业煤粉燃烧中的迅速热解,取样分析实验研究煤粉热解过程中颗粒尺寸和内部结构的变化。
- The dominant vortical structure in the wake of the impinging jet in crossflow is primarily dependent on the velocity ratio. 横流冲击射流中形成的主要尾迹涡结构主要依赖于流速比。
- The wall temperature distributionin different impinging jet heigtht are given,as well as sensitivity and accuracy of the technology arediscussed. 文中给出了在不同射流高度下壁面温度分布的等值线,并讨论了液晶测温技术的灵敏度及测试精度。
- Driers with the air flow being parallel to the veneer surface have now largely been replaced by perpendicularly impinging jet driers. 与常规室干或高温室干相比,两者的操作温度均较低,因而干燥时间较长。
- A lifted turbulent H_2/N_2 jet flame in a hot and vitiated coflow is investigated numerically to explore the issues of auto-ignition as well as the flame lift-off. 计算结果和实验数据进行了对比,表明所采用的模型可以精确的模拟火焰抬举高度和自然的过程。
- The wake vortices of an impinging jet in crossflow were studied experimentally by means of laser-induced fluorescence (LIF) flow visualization and particle image velocimetry (PIV) measurement. 摘要本文采用LIF(激光诱导荧光)流动显示和PIV(粒子图像速度场仪)测量对横流冲击射流的尾迹涡结构进行了实验研究。
- In the study of flow oscillation and discrete frequency noise of impinging jet, it is found that there is a critical pressure ratio for a given nozzle and a nozzle-to-plate distance. 发现对于给定的喷嘴和冲击距离,存在一个压比临界点,当压比高于此临界点值时,流场振荡和离散频率噪声被显著抑制乃至消失。
- Five types of mixers with their commercial use are discussed on their mixing mechanism and research status, including stirrer, jet mixer, static mixer, impinging jet mixer and fiber liquid film mixer. 在结合各种工业应用的基础上,总结了揽拌釜、射流混合器、静态混合器、撞击流混合器及纤维液膜流合器等五种混合设备的混合原理及研究现状。
- Study on equilibrium scour depth of impinging jet 射流冲刷平衡深度研究
- Keywords pulverized coal;devolatilization;trubulent jet flame; 煤粉;热解;湍流射流火焰;
- The flier is flying a new-type jet plane on trial. 飞行员正在驾驶一架新式喷气机作试验飞行。
- On the supersonic impinging jet by Laser Doppler Velocimetry 激光多普勒测速方法研究超声速冲击射流
- He ran into an old flame of his at the supermarket. 他在超级市场碰见了他的一个老相好。
- I add the coal on the flame continuously. 我不断朝火里添加煤炭。
- Billows of flame swept through the forest. 熊熊烈火席卷森林。
- Emissions of oxides of nitrogen (NOx) from combustion devices is a topic of tremendous current importance.The bulk of the review of NOx emissions has been in the field of turbulent jet flames. 贫油燃烧符合节能低污染的能源利用方式,但是贫油预混火焰不像扩散火焰有较大的操作区间,当量比过低后火焰也无法稳驻。
- Research of Spray Impinging Jet Cooling hot Rolled Steel Plate 雾化冲击射流冷却热轧钢板的研究