Its main components include gas collecting devices, cellular devices, turbulent mesh, fairing, cascade-type counterclockwise shearing deflector, and etc.
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2. 开口低速风洞的主要组成部分包括集气装置、蜂窝器、紊流网、整流罩和叶栅型反扭导流片等。
Low-speed wind tunnel opening of the main components of gas-collecting devices, cellular devices, tangled net, fairing and cascade-type deflector, such as anti-twisting.
Air flow is offset under actions of the blade-lattice surfaces after entering the blade-lattice air passages, and dust in air can be collected in the grooves under actions of inertia force.
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4. 航空发动机叶栅反推器叶型参数与反推效率、流量系数之间的规律对于反推装置的设计具有重要意义。
It is important to study the mechanism between the cascade blade profile parameters and the thrust reverser effectiveness.
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5. 其工程上的设计方法比较单一，普遍采用的方法是孤立叶型法和叶栅法。
The most popular design methods of the axial fan are the Single Aerofoil Method and the Cascade Method.
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6. 与常规叶片相比，二次流损失较小的后部加载叮型所构成的叶栅内的通道涡在结构上较为稳定。
Compared with conventional blade, the passage vortex structure is more stable in cascade with aft-loaded blade which secondary loss is small.
For investigating the aerodynamic character of the turbine cascades, understanding the detail flow in turbine cascades, the computational investigation was applied on some type turbine guide vane.
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8. 本课题以某型压气机的跨音速叶栅为研究平台，以提高叶栅静压增压比，减少叶栅流动损失为目标。
This thesis investigated transonic cascade of a certain compressor in order to increase the static pressure ratio of the cascade and reduce the coefficient of the cascade losses.
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9. 通过壁面静压测量、流场显示及气动探针测量研究了不同掠型叶片组成的平面扩压叶栅特性。
The performance of rectangular compressor cascades composed of different swept blades was studied by static pressure measurement, flow visualization and probe measurement.
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10. 根据叶型表面的压力分布，着重分析了叶型的空气动力绕流和叶栅特性的变化规律。
According to the pressure distribution on the airfoil surface, analysis is made particularly of the airflow around the airfoil and of the variation law of cascade characteristics.
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11. 以离心压缩机扩压器叶栅为例，在两个给定设计工况下采用所提出的方法求解其最佳叶片型线。
A diffuser cascade of a centrifugal compressor was chosen to be designed with the proposed approach, with its two operating points specified, and its blade profile to be optimized.
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12. 使用FLUENT软件对某型跨音速涡轮叶栅的导叶进行了S_1流面的粘性流动计算。
The present paper computed the viscous flow of S_1 flow surfaces in some transonic turbine vane cascade by using the computational software FLUENT.
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13. 本文介绍汽轮机叶栅叶型及叶片优化近计的各种方法，并提出几点看法。
In this article, different methods of optimum design for steam turbine cascades and moving blade are introduced, finally view on their future development is expressed.
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14. 本文选取某重复级压气机平均半径处的型线，进行平面扩压叶栅非定常数值模拟。
In this paper unsteady numerical simulation of planar diffuse cascade is performed in the model profiles that choosing from mid-span of the blade in a repeated compressor.
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15. 针对某大折转角子午扩张型导叶，通过数值模拟，讨论了端壁附面层抽吸对叶栅性能的影响。
By using of numerical simulation, the effect of applying boundary layer suction on end-wall to the aerodynamic performance for a van with a high-turning Angle and meridional divergence was discussed.
This paper explains the working principles of a fan, including velocities on an elementary stage, parameters of blade types and cascades and the aerodynamics formulas of cascades.
This article is intended to provide a method for the profile-calculating of unequally pitched nozzle plate straight blades in the axial-flow turbine.
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18. 给出了一个计算亚、跨音涡轮叶栅叶型损失的数值计算方法。
A new numerical method for predicting the profile loss of turbine blades in subsonic and supersonic flows is presented.
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19. 文中通过压气机叶片“修型”叶栅和常规叶栅的对比实验，研究了“修型”叶栅栅后三维流动特征。
A compressor end-modified cascade and its original cascade are compared experimentally to study the three-dimensional flow characteristics at the exit plane of the cascade.
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20. 通过叶栅平面流场的绕流计算，确定了叶栅三个设计截面上的叶片型线。
Through the analysis of the flow field, the blade profiles of 3 design sections are worked out.
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21. 对某型涡轮正弯及直叶栅流场进行了三维粘性求解。
Flow fields in a bowed and a straight turbine blade channels were simulated with 3d N-S solver.
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22. 对某型涡轮正弯及直叶栅流场进行了三维粘性求解。
Flow fields in a bowed and a straight turbine blade channels were simulated with 3d N-S solver.
