A two-dimensional incompressible diffuser flow was numerically simulated employing no staggered grid arrangement and incompressible SIMPLE method to solve GAO-YONG turbulence equations.
采用基于同位网格的SIMPLE方法求解gao - YONG不可压湍流方程组，对二维扩压器流动进行了数值模拟。
The study shows that complex flow separation in the diffuser can be effectively brought under control by external acoustic excitation.
实验结果表明用外部声激励的方法可以控制小展弦比扩压器内的复杂分离流动；
This model also can be used for the internal flow calculation of any two-dimensional diffuser and for improving its design.
本文的计算方法还可以应用于任意二维扩散器的内部流动计算，用来指导改进扩散器的设计。
Quantitative relations of the pump flow rate versus the ratio of diffuser length to width, the ratio of diffuser thickness to width, fluid viscosity and backpressure were also given.
还给出微泵流量与扩散管长宽比、厚宽比、液体粘度和进出口反压差的定量关系。
In this paper, the flow field of the supersonic diffuser and the subsonic-supersonic ejector is simulated by numerical method.
本文采用上述数值算法模拟了超声速扩压器和超声速引射器内流场。
The new design compressor improves the through-flow capability, and reduces the size of diffuser.
新设计压气机提高了通流能力，并且减小了扩压器尺寸。
The results show that the computed results of the flow within the vaneless diffuser was agreed with the available experimental data.
结果表明：无叶扩压器内部流动的计算值与实验值相吻合。
Paper concentrates on the results of the tests on the effects of the flow passage between valve head and diffuser on flow induced vibrations.
本文主要叙述阀碟与阀座之间所形成的流道对流体诱发振动影响的试验研究结果。
Centrifugal FLOW compressor, a type of compressor in which air is taken into the center of the impeller and is slung outward centrifugally into a diffuser where it is slowed and pressure is increased.
空气被吸入叶轮中心，被叶轮离心抛出进人扩散器。在扩散器中气体流速减慢，压力增加。
The inlet flow angle and diviation angle were confirmed which was applied to low cascade experiment result of American NACA, and controlled diffuser factor and flow deflection angle in design.
并应用美国NACA低速叶栅试验结果确定流入角和落后角，设计中控制扩散因子和气流折转角。
After this flow pattern transformed into a flow pattern with thermal chocking at the combustion chamber exit and with a pseudo-shock wave developing in the inlet diffuser.
之后，在燃烧室出口出现热拥塞现象、在进气道扩压段产生伪激波流态。
The relative position between the diffusion blade and the volute tongue has influence on the distribution of diffuser flow field and the position is regulated suitably to reduce the hydraulic loss.
扩压叶片与隔舌相对位置对扩散段流场的分布有影响，适当调整可以减小水力损失。
Under the same impeller outlet speed, the flow speed of blade diffuser is faster than the vaneless one. The average flow field at impeller outlet trends to uniform.
在相同叶轮出口速度下，叶片扩压器比无叶扩压器中气流速度下降迅速，叶轮出口处平均流场趋于均匀。
The liquid flow behaviour and mechanism of sugar extraction in the cane diffuser have been discussed.
对床层中液体的流动特性进行了分析，对渗滤式渗出器的糖分渗出机理进行了探讨。
Numerical research of the three dimensional viscous flow field in diffuser with small flow rate stage of centrifugal compressor is carried out.
对一离心压缩机小流量级扩压器内部的三维粘性流场进行了数值研究。
Centrifugal FLOW compressor, a type of compressor in which air is taken into the center of the impeller and is slung outward centrifugally into a diffuser where it is slowed and pressure is increased.
离心式压气机，压气机的一种。当进气到达叶轮中心时，被叶轮离心抛出进人扩散器。在扩散器中气体流速减慢，压力增加。
The research on diffusion loss of axial-flow fan's diffuser is carried out using theory calculation method and FLUENT software.
利用理论计算方法以及FLUENT软件对轴流通风机扩散筒的扩散损失进行了研究。
The numerical results indicate that 1) Phase differences in time of flow velocities and backflows occur across section of diffuser connecting to pump chamber;
数值结果表明：1）在微泵扩散管的过流截面上流速有时间相位差和回流现象。
With the increasing area of inlet of the diffuser and the growing distance between the dome and the diffuser, the distribution of the flow is more uniform.
增大扩压器出口面积和头部与扩压器间距有利于旋流器之间流量分配均匀。
A numerical simulation of the three-dimensional steady flow field in the whole flow field, from the inlet of the collector to the outlet of the diffuser, a 2k70 axial-flow fan is performed.
针对2k70型轴流式通风机从集流器进口到扩散器出口的内部三维全流场做了定常的数值模拟。
Impeller and diffuser are important parts in the Axial-flow pump and the later is the important part to take back energy.
叶轮和导叶是轴流泵装置中的重要过流部件，而轴流泵后导叶(以下简称导叶)是泵内动能回收的主要部件。
The unsteady flow within a centrifugal fan with vaneless diffuser was numerical simulated and analyzed on the CFX software flat.
基于CFX软件平台，对带无叶扩压器离心叶轮机械内部的非定常流动进行了数值计算分析研究。
A new diffuser which is impingement inlet plus uniform flow orifice was proposed in this paper.
本文提出了一种新型布水器——冲击入口加均流孔板型布水器，设计简单，易于推广。
The separating flow in a turbulent boundary layer was surveyed in a 2-d curved-wall diffuser by employing 2-d laser Doppler velometer.
应用二维激光多普勒仪测量了二元曲壁非对称扩张通道内的湍流附面层分离流动。
Experimental study using hot wire anemometer is carried out for the vanned diffuser of a centrifugal compressor. The flow field data are taken and reduced.
建立了进行级环境下扩压器内部流场实验研究的数据采集和处理方法，并用热线风速仪进行了测量；
Abstract: in this paper, set the three model stages with different flow coefficient as the research subject, the inlet of vaneless diffuser is analyzed in detail.
摘要：以三个不同流量系数的模型级为研究对象，对其无叶扩压器进口部分进行了详细分析。
A complicated turbulent flow field in a diffuser with typical geometric shape for aeroengine inlet design was calculated by the use of the implicit AF method.
应用隐式AF方法计算了为发动机进气道设计的典型扩压器内的复杂湍流流场。
Study of separated flow in a diffuser using linear and nonlinear eddy-viscosity turbulence models;
讨论应用线性和非线性涡粘性湍流模式计算跨声速湍流 。
Study of separated flow in a diffuser using linear and nonlinear eddy-viscosity turbulence models;
讨论应用线性和非线性涡粘性湍流模式计算跨声速湍流 。
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