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   进气 在 航空航天科学与工程 分类中 的翻译结果: 查询用时:1.209秒
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进气
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  intake
    Air intake system used in TBCC engine is designed and its performance is investigated.
    本文对涡轮基组合循环发动机进气系统进行了设计和性能研究。
短句来源
    This work mainly includes five items, such as the correction of Reynolds number (including height effect), elasticity effect, intake effect, jet effect and sting-support interference.
    主要包括Re数(含高度)修正、弹性影响、进气效应、喷流效应和模型尾支架干扰五个方面内容。
短句来源
  inlet
    A NEW METHOD FOR THE PREDICTION OF MAXIMUM INSTANTANEOUS INLET TOTAL PRESSURE DISTORTION
    预测最大瞬时进气压力畸变的新方法
短句来源
    Status and Trends of the Inlet Preventer of Helicopter
    直升机进气防护装置的现状和发展趋势
短句来源
    Measurements of Dynamic Total Pressure Distortion for Engine Inlet and Analysis of Effective Factors
    发动机进气总压动态畸变流场测试及影响因素分析
短句来源
    Steady Flow Field Numerical Analysis on Engine Inlet Total - Pressure Distortion Test
    某型发动机进气总压畸变试验稳态流场数值分析
短句来源
    Pulsatile Analysis of Inlet Pressure Distortion in Turbofan Engine
    某型涡扇发动机进气畸变压力脉动分析
短句来源
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  air inlet
    The Inserted Board Air Inlet Flow Steady Pressure Distortion Field Estimate Based on Experiment
    基于实验的插板式进气畸变稳态压力场估计
短句来源
    Cooling effectiveness was compared, based upon experimental data, between central(CP) and high positioned(HP) air inlet rotating disk systems It was found that the high positioned mode is better in reducing the disk radial temperature difference, though the differences of averaged Nusselt number and the averaged excessive body temperature are quite small between the two cases It was concluded that the radial temperature difference should be included in determining cooling effectiveness
    基于实验结果 ,对中心进气和高位垂直进气转静系旋转盘的冷却品质进行了较为系统的比较 ,结果发现 :虽然两者的盘面平均努赛尔特数和无量纲过余体平均温度相差很小 ,但是从减小径向温差角度看 ,高位垂直进气具有明显的优势 ,证明了以前提出的涡轮盘冷却指标应包含径向温差的合理性。
短句来源
    The results of analysis have indicated that excess air coefficient determines the average temperature, the air inlet rules of flame tube affect the temperature distribution along the blade height, and there are some changes in local sector temperature distribution, which is related to the inlet structure.
    研究表明 :余气系数决定平均温度 ,火焰筒进气规律影响沿叶高温度分布 ,局部扇面叶高分布有一定变化且与进气结构有关。
短句来源
  “进气”译为未确定词的双语例句
    Mathematical Simulation about Plate Distortion Simulator
    进气畸变模拟板的数学模拟问题
短句来源
    Analysis and Calculation of Vibration Response Induced by Inflow Distortion in the First-Stage Compressor Blading of Turbo-Engine
    航空发动机第一级压气机叶片对进气气流畸变的振动响应分析和计算
短句来源
    Effects of Byhass Air on the Combustion of Boron Parsicles in a Solid Fuel Ramjet
    固体燃料冲压发动机旁路进气对硼粒子燃烧的影响
短句来源
    NUMERICAL SIMULATION FOR MIXING FIELD OF TWO INCOMING STREAMS IN A DCR
    DCR进气分流与掺混流场的数值模拟
短句来源
    A STUDY ON AVERAGED HEAT TRANSFER CHARACTERISTICS OF A ROTATING CAVITY WITH AXIAL FRINGE INFLOW
    外缘轴向进气的旋转空腔主盘平均换热特性研究
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  intake
In the second day after treatment with the dose at 10 mg/mL of the alkaloid, the RGR reduced by 39.8%, and the food intake and the feces weight were respectively 57.7% and 57.4% of the controls.
      
The purified product was found to be biologically active and to reduce the food intake and body weight of mice during tests.
      
The lower intake of Fe, Mn, Si and Sr on the one hand and the higher intake of S, Cu, Al and Cr on the other hand might be responsible for the low fertility of captive Reeve's pheasants in the Dongzhai National Nature Reserve.
      
It is suggested that the increase in calcium intake may contribute to the relief of low plasma calcium diseases of elephants in captivity.
      
The objectives of this work were to investigate carbonyl compound levels in selected air from trains, identify their emission sources, and assess the intake of carbonyl compounds for passengers.
      
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  inlet
The effects of different viscous damping diameters, inlet pressures of pipe rupture valve, and elevator loads on the hydraulic elevator system's dynamic performance are analyzed.
      
It ingeniously utilizes the inner space of its chamber by developing its chamber bottom into unsymmetrical ridges along the direction of the inlet and outlet of the pump.
      
Two Y-shape pipes are fixed outside the chamber serving as an inlet and outlet, with the chamber and a piezoelectric vibrator being the actor.
      
The test powder silica has a mass median diameter of 10 um, while inlet velocity range was 12-36 m/s.
      
Both the separation efficiency and pressure drop of the cyclone were measured as a function of the inlet velocity and operating temperature.
      
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  air inlet
Numerical results revealed the effects of moist air inlet humidity, airflow velocity, size of spherical silica gel particles, width of the rectangular packed bed, and the side-wall cooling temperature on the amount of water vapor adsorption.
      
The fungus grew as dark dense pellets during a batch fermentation at 25.5°C and air inlet of 0.26-0.43?vvm.
      
The dryer air inlet temperature and relative humidity were controlled in experiments to determine the effect of thermal and dessicative stresses on conidial viability.
      
The dependence of the fuel-oil fluorescence in the burner on the air inlet temperature, on the total fuel mass flow, and on the residence time of the fuel was investigated.
      
Best results were obtained by the addition of 5% K2SO4 and at 107 °C air inlet temperature.
      
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In this paper experimental measurements have been made of drag coefficients of five models of gas turbine-machine exhaust pipe under conditions of axial inflow and of prewhirl inflow. A model is obtained which has relatively better performance and simple scroll construction. Measurement has also been made of the drag coefficients of the exhaust pipe whose inlet is equipped with oblique struts of pjwer turbine support, and of the influence of prewhirl on the drag coefficients under this condition.

本文试验测定了五种排气管模型在轴向进气进气予旋情况下的阻力系数,得出了一种蜗壳结构简单性能较好的模型。还测定了排气管进口装有动力涡轮承力机匣斜支板时的阻力系数,以及在这种情况下进气予旋的影响。

Aerodynamic design of a transonic axial-flow compressor for research purpose has been completed based on Wu's three-dimensional flow theory in turbomachines. Through 5 cycles of iteration between inverse calculations on a single mean S2 stream surface and direct calculations on a family of S1 surfaces of revolution, final convergent solution of the three-dimensional flow is reached. It implies that the coincidence of corresponding streamlines on the two kinds of stream surfaces and approximate equality of parameters...

Aerodynamic design of a transonic axial-flow compressor for research purpose has been completed based on Wu's three-dimensional flow theory in turbomachines. Through 5 cycles of iteration between inverse calculations on a single mean S2 stream surface and direct calculations on a family of S1 surfaces of revolution, final convergent solution of the three-dimensional flow is reached. It implies that the coincidence of corresponding streamlines on the two kinds of stream surfaces and approximate equality of parameters on them, such as Vθγ, △s/R and thickness of the stream surfaces. At the same time, the flow passage and the blade airfoil meeting all design criteria are determined. The flow field analysis of supersonic sections has shown that parameters such as Vor, As/R etc. all undergo a sudden jump through the shock.

基于吴仲华的三元流动理论,完成了单级跨声速轴流式研究压气机的气动热力学设计.经过两类流面的五轮迭代计算,S_1迥转面上的中心流线与中心S_2流面上相应流线的形状基本重合,其上参数如V_(θr)、△_s/R和流片厚度等大致相等,获得了三元流场的收敛解,同时也确定了满足各项设计判断准则及所需流量的流道和叶型.对超声速进气截面的流场分析表明,由于通道激波的滞止作用,波后的V_(θr)、△_s/R等量都发生了突跃.

In this paper, several types of inlet are designed for a certain aircraft and the results of ground tests on their models are discussed.According to the features of the aircraft inlet (side inlet, square entrance, Large L/D and structure limitation, etc.), the paper illustrates the selecting principles of parametres in respect of entrance area, throat area, lip geometry parametre, the passage near the throat, and the area distribution in subsonic diffuser. It analizes the effect of these parametres on the inlet...

In this paper, several types of inlet are designed for a certain aircraft and the results of ground tests on their models are discussed.According to the features of the aircraft inlet (side inlet, square entrance, Large L/D and structure limitation, etc.), the paper illustrates the selecting principles of parametres in respect of entrance area, throat area, lip geometry parametre, the passage near the throat, and the area distribution in subsonic diffuser. It analizes the effect of these parametres on the inlet performance. These principles also apply to transonic or subsonic inlets.It follows from the test that the best type of these inlets is the type Ⅳ, the parametres of which are as follows. Mt= 0.75, CR=1.20, a/b= 2.84 and n = 2.25. The total pressure recovery can reach 0.908 and DCeo is equal to about -0.22 on ground state. This will not only satisfy the requirements of the Spey engine which is associated with the inlet of the aircraft, but also catch up with and surpass the level of the same types of aircraft at home and abroad.

本文针对某飞机的要求,设计了几种进气道方案,并对其地面模型的试验结果作了讨论。 文章根据某飞机进气道的特点(两侧进气,近似方形进气口,进气道长度对进气道出口直径比L/D较大以及由于总体结构的限制,使进气道形成左右、上下较大的转弯等),阐述了进气道进口面积,喉道面积,唇口几何参数,喉道附近通道部分和亚音扩压段面积分布等参数的选择原则。文章还分析了上述这些参数对进气道性能的影响。本文对进气道有关设计参数所提出的设计原则对一般的跨、亚音速进气道也是适用的。 从几种方案的试验结果得出:喉道M数为0.75,唇部收缩比为1.20,内型面的椭圆长短轴比a/b=2.84,超越椭圆指数n=2.25,内通道面积分布为第Ⅳ方案的进气道性能最好。在地面起飞状态,进气道的总压恢复系数σ可达0.908,周向总压畸变指数DC_(60)为0.22左右。该指标满足了与该机进气道配用的斯贝发动机要求,并达到和超过国内外同类机种的地面性能水平。

 
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