离心叶轮

并对某压气机离心叶轮进行了优化，有效地减轻了叶轮的重量。

A numerical example is presented in which an impeller is optimized , and in result its weight is reduced efficiently .

通过实验研究发现旋转离心叶轮内部的流动是非定常，在叶轮出口处，叶片的吸力面与轮盖的夹角区存在一个低速区，并观察到了明显的射流/尾迹结构。

In the outlet of impeller , there is low velocity region between suction surface of blade and shroud . The jet and wake construction was clearly observed .

离心叶轮CAD技术中应重点研究的问题

Some Important Problems in CAD Techique of Centrifugal Impellers

一个高压比离心叶轮的CFD结果确认

CFD validation of a high speed centrifugal compressor impeller

用CFD研究高压比离心叶轮内的二次流动

Application of CFD in the Investigation of the Secondary Flow in a High Speed Centrifugal Impeller

小流量工况下旋转离心叶轮内部流场PDA测量与分析

Flow Field Measurement in Centrifugal Impeller by Laser Phase Doppler Anemometer on Low Flow Rate Condition

离心叶轮机械有叶扩压器内部流动的PIV测量

PIV measurements of the unsteady flow in the vaned diffuser of a centrifugal fan

采用RNGk-ε模型对Ghost离心叶轮内三维紊流流动进行数值模拟。

The RNG k ε model was applied to study the turbulent flow in the Ghost impeller .

用数值计算方法研究离心叶轮内流场的三维粘性流动.在流场计算中，利用有限体积法对三维NS方程组进行差分离散，并应用SIMPLER算法来求解。

In the calculation of flow field , the 3D N S equations are separated by finite volume method and the improved SIMPLER method .

在小流量工况下，采用PDA技术对一旋转离心叶轮内部的速度场进行了测量与分析，叶轮出口带有无叶扩压器。

Phase doppler anemometer ( PDA ) technique was adopted to investigate the internal flow field within a centrifugal impeller under low flow rate operating condition .

在此基础上，分析研究液压、拉杆、GM（gearmultiplyingassembly）三种典型装配工艺，提出综合考虑强度、刚度约束统一的离心叶轮装配工艺优化设计模型；

Based on this , a uniform assembly optimization design model including intensity and rigidity restrictions was advanced by analyzing three type of assembly technics of impeller ( hydraulic pressure assembly , gear multiplying assembly , pull shank assembly ) .

离心叶轮出口与无叶扩压器内部流动特性的DPIV实验研究

Digital Particle Image Velocimetry ( DPIV ) investigation of the flow characteristics within the vaneless diffuser of a centrifugal blower

利用激光多普勒测速仪（LDV）对后弯闭式离心叶轮内部气流在非设计工况下的流动进行了实验测量。

An experimental investigation of the shrouded centrifugal backswept impeller flow field has been conducted at off-design flow using Laser Doppler Velocimeter ( LDV ) and shaft encoder .

文发展了一种通过求解不可压缩、定常、时均N-S方程、连续性方程和k-ε湍流模型方程分析离心叶轮出口三维流场的方法。

A method for calculating 3 D discharge flow in a centrifugal impeller is developed by means of solving the incompressible steady time averaged N S equations , the continuity equation and the k ε turbulence model equation .

本文基于已经过实验数据确认的CFD结果，详细地分析和讨论了一种高压比离心叶轮内在近设计点的三维流场，以揭示其中激波与边界层相互作用和二次流动结构等的特征。

Based on the CFD results validated previously with experimental data , this paper analyzed and discussed in detail the 3D flow within a high-speed centrifugal impeller at near-design condition in order to make deep understanding of the features of shock / boundary layer interaction and its secondary flow pattern .

将叶轮转子系统简化为Jeffcott转子，建立了不平衡离心叶轮转子在非线性横向流体激振力和非线线轴承油膜力作用下的振动模型，并推导了系统的无量纲运动方程。

A centrifugal impeller system is simplified to a Jeffcott rotor system . The dynamic model of this eccentric centrifugal Impeller-rotor with both nonlinear lateral fluid force and nonlinear oil-film force is built and dimensionless equations of the system are derived .

离心叶轮内稀释固液两相流动的数值模拟

Numerical solutions for turbulent dilute liquid-particle flows through a centrifugal impeller

离心叶轮的三维有限元循环对称应力分析

The Three Dimensional Finite Element Cyclic Symmetric Stress Analysis of Impellers

离心叶轮内三维分离流态的拓扑分析

Topology analysis of the 3-D separation flow state in centrifugal impeller

叶根倒角对离心叶轮气动性能的影响

Influence of root fillet on the aerodynamic performance of centrifugal impeller

离心叶轮内部三维湍流流场的数值分析

Numerical analysis of 3-D turbulent flow field in a centrifugal impeller

离心叶轮外侧面摩擦损失计算

Friction Loss at Outer Side of Impeller Surface for Centrifugal Compressor

离心叶轮内三维紊流流动数值模拟

Numerical Simulation of the 3D Turbulent Flow in Centrifugal Impeller

高速离心叶轮内部三维粘性流场的数值模拟

Numerical simulation of three-dimensional viscous flow field inside a high-speed centrifugal impeller

离心叶轮优化设计法应用与全三维数值模拟

Optimizing design method for centrifugal impeller its engineering application and numerical simulation

关于对流体激振及离心叶轮转子分岔特性的研究

Study on Fluid Exciting Force and Bifurcation Characteristics of Centrifugal Impeller Rotor

利用周期性特点进行离心叶轮三维有限元强度计算

Three Dimension Strength Calculation of a Centrifugal Impeller Using Cyclic Symmetric Condition

采用复约束旋转模态子结构法分析离心叶轮振动特性

Dynamic Analysis of Centrifugal Compressor Impellers by Application of Rotating Mode Substructuring

对美国一最新离心叶轮设计资料的分析

Analysis of a Latest U.S Design Data of Centrifugal Impellers

高压比跨音速离心叶轮的三维叶片型线优化

Three-dimensional Blade Profile Optimization for a High Pressure-ratio Transonic and Centrifugal Impeller