1) impeller-diffuser
叶轮/扩压器
2) impeller/diffuser interaction
叶轮/扩压器相互作用
3) vaned diffuser
叶片扩压器
1.
On the basis of three dimensional viscous numerical simulation on the internal flow field in the vaned diffuser of a centrifugal compressor,the influence of shaper parameters on the pneumatic performance in low solidity vaned diffuser is compared.
通过对一离心压缩机叶片扩压器内部流场进行三维粘性数值模拟,对比分析了小稠度扩压器的主要形状参数对气动性能的影响。
2.
In this paper the Kriging model was applied to the aerodynamic optimization design of the vaned diffuser for a high speed centrifugal compressor.
本文以某高速离心压气机叶片扩压器为研究对象,采用Kriging模型在设计工况下对其进行气动优化设计,以获取较高的“叶轮+扩压器”等熵效率,同时保证扩压器出口静压不降。
3.
An Experimental investigation on the flow fi el d in vaned diffuser of a centrifugal fan has been conducted using Laser Doppler Velocimeter (LDV).
利用激光多普勒测速仪 (LDV)测量了离心风机叶片扩压器的内部流场。
4) vaneless diffuser
无叶扩压器
1.
Hot wire measurement of flow field in vaneless diffuser;
无叶扩压器内流场的热线测量
2.
Unsteady flows and rotating stall of a low-speed centrifugal compressor were investigated by measuring vaneless diffuser wall static pressure fluctuation and internal flow fields in detail at different small flow fluxes.
对某低速离心压缩机无叶扩压器壁面静压波动和内部流场进行了详细的试验测量,重点研究了小流量工况下的不稳定流动和旋转失速。
3.
Numerical simulation results of rotating stall flow phenomenon inside a centrifugal compressor with vaneless diffuser by solving three-dimensional Reynolds averaged compressible N-S equations using commerce computational fluid dynamjcs(CFD) software CFX adopting RNG k-ε turbulence model are presented in this paper.
使用商业CFD计算软件CFX求解三维雷诺平均的Navier-Stokes方程组,结合出口气腔模型对某带无叶扩压器的离心压缩机的旋转失速现象进行数值模拟。
5) vane diffuser
叶片扩压器
1.
In this paper, the numerical investigation on vane diffuser is given under the condition of basic stage of centrifugal compressor using Fine/Turbo flow analysis software.
应用流动分析软件Fine/Turbo对叶片扩压器在压缩机基本级环境条件下进行了数值研究。
2.
A numerical simulation is preformed by replacing vane diffuser with vaneless diffuser with the other boundary conditions unchanged.
针对离心式压缩机模型级进行了数值模拟,与试验结果对比验证了计算模型的正确性,用无叶扩压器代替叶片扩压器在相同的边界条件下进行流场数值模拟,根据模拟结果对比分析了两种情况下叶轮内部的流动特征,揭示了叶片扩压器和无叶扩压器对离心式压缩机级内流场的影响规律。
3.
Based on the vane diffuser of small flowrate model stage in centrifugal compressor,the influence of vane diffuser on the performance of model stage is studied through changing the location and length of vane and the analysis of calculation results obtained by the individual numerical simulation.
在某离心压缩机小流量模型级叶片扩压器的基础上,改变其叶片的位置和长短,并分别进行数值模拟,通过分析计算结果,研究叶片扩压器对模型级性能的影响。
6) diffuser vanes
扩压器叶片
1.
Based on theory of thin-airfoil,an equation,calculating unsteady force on diffuser vanes with the impeller viscous wakes is established by the model which is described as a group of continuous eddy distribution instead of each blade and equi-splitting array in c.
基于薄机翼理论,每个叶片用一组连续分布涡来代替,把环形叶栅片模化成在圆周上连续分布涡组的等分排列,建立了在离心叶轮粘性尾迹作用下扩压器叶片上不稳定力计算式。
补充资料：叶轮
分子式：
CAS号：
性质：又称工作轮。离心式压缩机中惟一对气流作功的元件。转子上的最主要部件。一般由轮盘、轮盖和叶片等零件组成。气体在叶轮叶片的作用下，随叶轮作高速旋转，气体受旋转离心力的作用，以及在叶轮里的扩压流动，使它通过叶轮后的压力得到提高。对叶轮的要求是：(1)能给出较大的能量头；(2)气体流过叶轮的损失要小，即气体流经叶轮的效率要高；(3)气体流出叶轮时各参数合宜，使气体流过后面固定元件时的流动损失较小；(4)叶轮型式能使级或整机性能曲线的稳定工况区及高效区范围较宽。常分为闭式、半开式和开式叶轮。
CAS号：
性质：又称工作轮。离心式压缩机中惟一对气流作功的元件。转子上的最主要部件。一般由轮盘、轮盖和叶片等零件组成。气体在叶轮叶片的作用下，随叶轮作高速旋转，气体受旋转离心力的作用，以及在叶轮里的扩压流动，使它通过叶轮后的压力得到提高。对叶轮的要求是：(1)能给出较大的能量头；(2)气体流过叶轮的损失要小，即气体流经叶轮的效率要高；(3)气体流出叶轮时各参数合宜，使气体流过后面固定元件时的流动损失较小；(4)叶轮型式能使级或整机性能曲线的稳定工况区及高效区范围较宽。常分为闭式、半开式和开式叶轮。
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参考词条