离心压气机叶片扩压器正反问题设计计算方法  

A DESIGN AND ANALYSIS METHOD FOR CENTRIFUGAL COMPRESSOR VANED DIFFUSERS

作　　者：黄小燕[1] 汪庆桓[1] 

机构地区：[1]中国科学院工程热物理研究所

出　　处：《工程热物理学报》1989年第4期399-402,共4页Journal of Engineering Thermophysics

摘　　要：一、方法概述 本方法大体包括以下三个方面的内容: 1.级数展开法反问题 级数展开法的本质,是由给定流线上的一维流动出发,通过向另一向的台劳级数展开而得到二维流场。沿流线可以考虑熵增以表征流动损失。为了简化,假定沿另一方向熵的变化为零,即。In order to develop a CAD computer code system for centrifugal compressor, a numerical technique for design and flow analysis of vaned diffusers has been introduced in this paper. The design of diffusers has been performed by a streamline extension method. The velocity and pressure distributions at design and off-design operating modes have been calculated by a lime-dependent finit difference scheme and have been corrected by boundary layer calculations. The numerical results are compared with experimental measurements, and the agreement is satisfactory.

关 键 词：离心 压气机 叶片 扩压器 设计 

分 类 号：TH452[机械工程—机械制造及自动化]