Appropriate tip clearance flow can improve the flow in the tip region.
适量的间隙流动有利于改善通道顶部区域流动。
Downstream rotor-stator interaction increases the unsteady fluctuating intensities of the rotor tip clearance flow and the tip leakage loss.
下游静叶干涉增加了动叶顶部间隙流的非定常波动强度和泄漏损失。
Tip clearance flow in a radial inflow turbine rotor blade under stage environment was investigated by 3-dimensional viscous flow simulation.
对微型燃机向心透平叶轮顶部间隙流动在级环境下进行了全三维粘性数值模拟。
However, the detailed transient flow field, the originating mechanism and the potential application of unsteady tip clearance flow are unclear or not enough understood to date.
然而到目前为止，这种非定常波动的基本流动特征，形成机理及其潜在的应用前景都不够清楚。
Recently, the unsteady characteristics of tip clearance flow, which appears in some flow conditions, was discovered and its influence to the compressor performance was recognized.
近年来，人们发现压气机叶顶间隙流并非始终处于定常状态，在某些流动条件下，它会产生明显的非定常波动，并影响压气机的总性能。
Numerical methods were utilized to investigate the time-dependent flow patterns and the frequency characteristics of unsteady tip clearance flow in an axial-flow low-speed isolated compressor rotor.
利用数值方法研究了某低速轴流孤立压气机转子中非定常叶顶间隙流的流动特征和频率特性。
The influence of tip clearance on overall performance and detailed flow structure in tip region of an axial compressor rotor was investigated.
研究了顶部间隙对压气机转子总性能及内部流场的影响。
The details of the flow in tip region were predicted under different clearance scale and the condition of both stationary and rotating hub.
对于不同大小的间隙及环壁静止与旋转的不同壁面条件，揭示了叶顶区流动的细节。
The influence of blade number, blade thickness, location of splitter blades and tip clearance on mass flow, pressure ratio and efficiency is showed.
讨论了改变叶片数目，增加叶片厚度，调整分流叶片周向位置以及增加间隙高度等对离心叶轮流量、压比和效率等总体性能的影响。
The 3d viscous code had been developed to calculate flow field in rotor with tip clearance by solving three-dimensional Navier-Stokes equation with time-marching method.
采用时间推进法求解三维n - S方程，开发了一种用于计算考虑顶部间隙的压气机转子内部流场的三维粘性程序。
The results showed that the main flow rolled up the leakage flow of the tip clearance and generated the tip leakage vortex.
结果表明：叶顶间隙气流与主流发生卷吸而生成泄漏涡。
The numerical result shows increasing the tip clearance will reduce hydrostatic head, especially at small flow rate.
数值结果表明，间隙增加，扬程下降，特别是越在小流量工况下越明显。
There are flow separations at the front blade of bulge tip clearance. The high speed area of groove tip clearance increases the secondary flow loss dramatically.
凸型间隙在叶片前缘引起了流动分离，凹型间隙存在一高速区，增加了二次流损失。
This article investigates the nonlinear dynamic characteristics and stability of an axial flow compressor with tip clearance and ball bearings.
研究叶尖气隙和滚动轴承共同作用下轴流压缩机的非线性动力特性及稳定性。
A 3d numerical simulation software was developed to calculate the tip-clearance flow of ATS-2, a high-loading transonic compressor, and the results were compared with the experiments.
利用自行开发的叶轮机三维数值模拟软件对高负荷跨音压气机ats - 2转子进行了带叶尖间隙的三维流动数值模拟，并与实验的结果进行了比较。
The computed conclusion show that the magnitude of tip clearance has close relationship with the intension of tip leakage flow.
根据所测量得到的三维速度，清楚地展现了转子顶部流动的特性，特别是泄漏流对顶部流动的影响。
The computed conclusion show that the magnitude of tip clearance has close relationship with the intension of tip leakage flow.
根据所测量得到的三维速度，清楚地展现了转子顶部流动的特性，特别是泄漏流对顶部流动的影响。
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