流体机械2016，Vol.44Issue(8)：16-21,6.DOI:10.3969/j.issn.1005-0329.2016.08.004
轴向间隙对对旋风机气动特性及总性能的影响
Influence of Axial Spacing on a Counter Rotating Fan Aerodynamic Characteristics and Performance
摘要
Abstract
In order to study the influence of axial spacing on internal flow of the counter-rotating fan,a mining counter-rotating fan is used as the object,the CFD method was applied to simulation the fan under 6 different axial spaces between rotors,numeri-cal simulations have been conducted to investigate the effect of axial spacing between two reversed rotating rotors of a counter rota-ting axial fan on the pressure fluctuation characteristics,performance and the detailed flow structure. Research shows:the increase of axial spacing not only can effectively weaken the downstream rotor potential interference,but also can reduce the impact of up-stream rotor blade wake. The axial gap has significant influence on the efficiency,the static pressure rise,the two stage efficiency and the shaft power. Increasing the axial spacing can increase the loss.关键词
对旋风机/轴向间隙/压力脉动/性能/数值模拟Key words
counter rotating fan/axial spacing/pressure fluctuation/performance/numerical simulation分类
机械制造引用本文复制引用
栾亨宣,陈庆光,翁丽媛,李宣,牛华青,郭自超..轴向间隙对对旋风机气动特性及总性能的影响[J].流体机械,2016,44(8):16-21,6.基金项目
山东省自然科学基金项目(ZR2013EEM017) （ZR2013EEM017）
中国煤炭工业协会科学技术研究指导性计划项目(MTKJ 2011-366) （MTKJ 2011-366）
