It was shown that radial jet flow of the Rushton turbine along the radial direction is tilted towards the top. Varying the impeller diameter had no effect on either the velocity or turbulent kinetic energy of the impeller stream, but did affects on the input power, shear velocity, pumping capability and radial jet angle.
结果表明，Rushton桨叶产生的径向射流沿径向方向是向上方倾斜的，倾斜角度在5°~6°；在排出区，湍流动能沿径向先增加至一峰值后减小；不同桨叶直径的Rushton桨，无因次化后的速度和湍流动能的大小分布在桨叶附近几乎没有差别，但随着桨叶直径的增大，剪切速率和输入功率减小，射流偏角和排出量增大。
The numerical method of large-eddy simulation, the computational method of compressible turbulent flow, parallel cluster, POD method and the statistical analysis method of turbulence are studied, and the parallel program of large-eddy simulation of turbulent jet are obtained.
对本研究采用的湍流大涡模拟方法、可压缩湍流数值模拟算法、并行机群、POD方法和湍流统计分析方法等进行研究，得到了并行的湍流射流大涡模拟程序。
A selection of recent publications with regard to numerical simulations of the turbulent impinging jet flow and heat transfer are reviewed in this paper. The emphasis is on the assessment of the abilities of various turbulence models in predicting the impinging jet flow and heat transfer. The existing problems and the research prospects in this field are discussed.
本文在分析了湍流冲击射流的数值研究现状的基础上，对近年来有关湍流冲击射流流动与传热的数值研究方面的文献有选择地进行了综述，重点评述了不同湍流模型对冲击射流流动与传热的预测能力，讨论了存在的问题并对该领域今后的研究方向进行了展望。
The laminar plasma jet showed a length of about 7 times than that of a turbulent one, because of the reduced air entrainment.
与湍流等离子体射流相比，由于对周围冷气体卷吸减少，层流射流在喷射方向的长度可增长 6倍。
Simulations of thermal plasma flow and heat transferare conducted for various conditions and vast technical background, such as forplasma torch with pure argon or argon/hydrogen as the working gas, the plasma torchworking within the laminar or turbulent regime, the plasma torch with subsonic orsupsonic velocity at the exit, the laminar or turbulent plasma free jet or impinging jet, the argon plasma jet issuing into an air surroundings or the argon/hydrogen plasma jetissuing into an argon environment, the subsonic or supsonic plasma jet, the plasma jetat the LTE (Local Thermodynamic Equilibrium) or Non-LTE state, etc.
模拟中考虑了等离子体物性随温度的大幅度变化，考虑了不同的流动状态、不同的工质气体及环境气体，以及亚声速与超声速流动情形，模拟对象包括：以纯氩及氩一氢混合气体为工质的发生器，处于层流及湍流流动状况的发生器，亚声速及超声速电弧等离子体发生器，层流及湍流的等离子体自由射流及冲击射流，空气环境中的氩等离子体射流及氩气环境中的氩-氢混合气体为工质的等离子体射流，亚声速等离子体射流及超声速等离子体射流，LTE等离子体射流及化学非平衡等离子体射流，等等。
A spatial developing gas-solid two-phase turbulent jet with Reynolds number 5990 is studied by direct numerical simulation.
本文对流动雷诺数 Re=5990的空间发展的气固两相湍流射流进行了直接数值模拟。
To the problem of the airflow of pressed ventilation in mine heading face, this study has completed the research content of project assignment paper by using the theories such as hydromechanics, aerodynamics and turbulent jet, as well as the computer simulation technology.
独头巷道的压入式通风问题是有限空间的射流通风问题，同时，由于巷道壁面的限制，存在射流附壁的问题，因此，独头巷道压入式通风问题实际上是有限空间的附壁射流通风问题。
Nitrogen oxides emission from a series of turbulent methane jet non-premixed flames with different Reynolds number was numerically simulated, in order to investigate the influence of turbulence on the formation of nitrogen oxides.
对一系列具有不同Reynolds数的湍流甲烷射流扩散火焰中氮氧化物的排放进行了数值模拟，以考察湍流对氮氧化物排放的影响。
The anisotropy turbulent model was introduced in the present calculation. The numerical calculated results were obtained including the velocity profiles and temperature distribution along the pure jet zone, transition zone and plume zone.
计算中采用各向异性的涡粘系数和涡扩散系数湍流模型，通过计算给出了排气尾流烟羽湍浮射流沿射流轴向包括射流区、过渡区及卷流区全域内的速度和温度分布，归纳了各个区域内速度、温度分布的回归表达式。
The flow fields are simulated in the conditions of normal, positive and negative jet injection angles; the velocity fields, pressure fields and turbulent kinetic energy fields are got in different conditions of R and D, and the evolution of flow patterns on the centreplanes, and both the transverse and vertical planes are analyzed.
计算了射流垂直入射、正向倾斜和反向倾斜入射时的流场，计算结果给出了不同R、D和α等工况下的速度场、压力场、湍动能的变化，分析了流场在沿流动方向、纵向及垂直方向不同截面内的发展变化规律。
A large range of IRZ and intense fluctuating velocity area around the boundary of IRZ is measured and thought to be important to keep the excellent ignition and combustion characters of the new kind swirl burner. Together with temperature trace method, different structure and operation parameter of the burner are studied in this paper about their effects on turbulent and mixing characters of swirling jet. The structure variation includes different blade angle, use of central gear shape baffle, variable outer length and angle of lean primary air outlet, use of wedge outlet of lean primary air.
采用上述两种测量方法并结合热质比拟温度示踪的方法，本文对径向浓淡旋流煤粉燃烧器喷口结构和气流流动参数的变化对旋流流场的流动、混合、湍流脉动特性的影响进行了深入研究，研究了旋流叶片倾角大小、中心齿型扩锥、淡一次风扩口外伸长度和扩角的变化、淡一次风楔形扩口、直流二次风扩口角度的变化对出口旋转射流流动特性的影响，研究了一次风率和旋流二次风率运行参数变化的影响规律。
The third chapter was to investigate the wave characteristics of the coherent structure in turbulent jet diffusion flame.
第三章对湍流射流与火焰大涡拟序结构的波动特性进行了研究。
The results also suggested that the compression and turbulence of unburned gas caused by flow and combustion of gas mixture and the jet fire induced by turbulent flow played a significant role in the enhancement of gas explosion strength in linked vessels.
研究表明，连通容器中气体燃烧和流动引起未燃气体的压缩和湍流以及湍流诱导的喷射燃烧是系统中气体爆炸强度增加的主要原因，而管道在湍流诱导的喷射火焰中扮演非常重要的角色。
A modified k-ε model, a k-ε-kp gas-particle model and a EBU-Arrhenius model is applied in the simulation of turbulent free jet flow of pulverised coal combustion in different load cases.
采用修正的k-ε湍流模型，利用k-ε-kp气固两相模型和EBU-Arrhenius燃烧模型模拟了不同工况下煤粉气固两相自由射流燃烧的过程。
A turbulent jet turning transversely into a uniform crossflow is an important type of fluid flow with applications in various engineering fields, e. g. internal film cooling of turbine blades, dilute air jets in combustion chambers, jet from V/STOL aircraft in transition flight, and waste disposal from smoke stacks into the atmosphere.
横向紊动射流作为流体运动的一种重要类型，广泛存在于如：燃气轮机气膜冷却、锅炉燃烧室等的燃烧控制，V/STOL飞机、废气排放的控制等工程实际应用中。
Analyzing the structure and properties of grinding fluid jet, the velocity distribution field of round turbulent jet is discussed theoretically and simulated.
在对磨削液喷射过程的射流结构与特性分析的基础上，对圆形紊动射流速度分布场进行了解析与仿真。
This paper describes a new phenomenon of acoustic streaming, which ta-kes place when a Helmholtz resonator is excited by an inside sound source with resonant frequency, and takes the form of a turbulent jet.
本文描述了一种新的声学整流效应现象，当Helmholtz共振腔内部声源以共振频率激振时，整流以一股湍流喷流形式发生。
A turbulent methane jet diffusion flame is numerically simulated by using both steady and unsteady flamelet models. The modeling ability of the two models to represent the mean turbulent flame structures, active radicals and pollutant (nitric oxides) emissions is compared.
采用稳态的和非稳态的火焰面模型同时对一个湍流甲烷射流扩散火焰进行了数值模拟，比较了两者对湍流平均火焰结构、活性自由基和污染物（氮氧化物）排放的模拟效果。
The theory of turbulent jet has been employed to induce new formulas for wall jet, and on the base of correct spray penetration, air entrainment model in swirl field has been built.
采用紊流射流理论推出了新的壁面射流计算公式，并在正确描述喷注贯穿的基础上建立了有涡流作用的空气卷吸模型。
And turbulent mixing between plasma jet and air is very strong.
等离子射流与大气间存在强烈的湍流掺混作用。