叶轮结构参数对吸油烟机风机内部流场影响分析  

Analysis of the Impeller Structure Parameters Influence on Flow Field Inside of the Range Hood Fan

作　　者：苏荣华[1] 高洋[1] 沈洪爽 刘晓林[1] 张伟[1] 

机构地区：[1]辽宁工程技术大学力学与工程学院,辽宁阜新123000

出　　处：《机械设计与研究》2014年第5期165-168,共4页Machine Design And Research

基　　金：辽宁工程技术大学2014年研究生科研立项资助项目

摘　　要：应用Fluent软件对某型吸油烟机风机内部流场进行数值模拟,得到风机在稳定工作状态下流场压力及速度分布图,研究风机叶轮轮径比参数对吸油烟机风机内部流场的影响规律,并进行了试验验证。结果表明:叶轮轮径比为0.88时,风机内部流场存在涡流、二次流和出口逆流等流动现象;不同轮径比风机的出口总压分布不同,其最大值主要分布在风机出口和蜗舌附近;当叶轮轮径比为0.84时,风机效率最高,为吸油烟机的优化设计提供参考。Application of Fluent software to the internal flow field numerical simulation for a certain range hood fan, got the fan in the stable working state of flow field pressure and velocity profile, researched the impeller wheel diameter ratio parameters on the influence rule of the flow field inside the range hood fan, and carried out tests to verify. The results show that the internal flow field of fan exists the flow phenomenon of vortex flow, secondary flow and outlet countercurrent, when the impeller wheel diameter ratio is 0.88. The fan with different wheel diameter ratio has the different total pressure distribution at the outlet. The maximum value is mainly distributed near the outlet of the fan and the volute tongue; Fan has the highest efficiency, when the impeller wheel diameter ratio is 0. 84. This paper provides the reference for the optimization design of range hood.

关 键 词：多翼离心风机 数值模拟 轮径比 频谱分析 风机效率 

分 类 号：TB53[理学—物理]