江苏大学学报（自然科学版）2013，Vol.34Issue(1)：28-32,5.DOI:10.3969/j.issn.1671-7775.2013.01.006
基于CFD的离心泵侧壁式压水室优化设计
Optimal design of centrifugal pump with tilt volute based on CFD
摘要
Abstract
To achieve high efficiency and low pressure pulsation, the slant angle of tilt volute and clearance between impeller and volute were controlled. A centrifugal pump with tilt volute of specific speed 130 was simulated by Fluent software at the same boundary conditions. The results show that when clearance rate keeps constant, the hydraulic efficiency reaches maximum at slant angle of 15°. The hydraulic efficiency is increased with the increasing of clea-rance rate with maximal value at clearance of 0. 308. FFT(Fast Fourier Transform Algorithm) was adopted to transform time-domain pressure signals into frequency-domain pressure signals. The magnitude of pressure pulsation at fBP obtains minimum value at slant angle of 15°. The amplitude of pressure pulsation at fBP is decreased with the increasing of clearance rate. The clearance rate is suggested in the range from 0. 134 to 0. 192 because the clearance rate is limited by radial dimension.关键词
离心泵/侧壁式压水室/水力效率/压力脉动/优化设计Key words
centrifugal pump/tilt volute/hydraulic efficiency/pressure pulsation/optimal design分类
机械制造引用本文复制引用
杨敏官,张宁,李忠,高波..基于CFD的离心泵侧壁式压水室优化设计[J].江苏大学学报（自然科学版）,2013,34(1):28-32,5.基金项目
国家自然科学基金资助项目(50776040,51206063) （50776040,51206063）
江苏省高校自然科学研究项目(11KJB470003) （11KJB470003）
