维普中文期刊产品整合服务

Optimization Analysis of the Mixing Chamber and Diffuser of Ejector Based on Fano Flow Model

查看全文 作　　者：Lixing [1]Zheng;Weibo [2]Wang;Yiyan [1]Zhang;Lingmei [3]Wang;Wei [2]Lu 高影响力作者 机构地区：[1]School of Electric Power,Civil Engineering and Architecture,Shanxi University,Taiyuan,030006,China;[2]School of Mechanical Engineering,Guangxi University,Nanning,530004,China;[3]Wind Turbine Monitoring and Diagnosis,NTRC of Shanxi Province,Taiyuan,030006,China高影响力机构 出　　处：《Computer Modeling in Engineering & Sciences》索引2022年第10期,共18页高影响力期刊 摘　　要：An improved model to calculate the length of the mixing chamber of the ejector was proposed on the basis of the Fano flow model,and a method to optimize the structures of the mixing chamber and diffuser of the ejector was put forward.The accuracy of the model was verified by comparing the theoretical results calculated using the model to experimental data reported in literature.Variations in the length of the mixing chamber L_(m) and length of the diffuser L_(d) with respect to variations in the outlet temperature of the ejector T_(c),outlet pressure of the ejector p_(c),and the expansion ratio of the pressure of the primary flow to that of the secondary flow p_(g)/p_(e) were investigated.Moreover,variations in L_(m) and L_(d) with respect to variations in the ratio of the diameter of the throat of the motive nozzle to the diameter of the mixing chamber d_(g0)/d_(c3) and ratio of the outlet diameter of the diffuser to the diameter of themixing chamber d_(c)/d_(c3) were investigated.The distribution of flow fields in the ejector was simulated.Increasing L_(m) and d_(c3) reduced T_(c) and p_(c).Moreover,reducing p_(g)/p_(e) or d_(g0)/d_(c3) reduced T_(c) and p_(c).The length of the mixed section L_(m2),which was determined on the basis of the Fano flow model,increased as pg increased and decreased as d_(c3) increased.The mixing length L_(m1),which was considered the primary flow expansion,showed the opposite trend with that of L_(m2).Moreover,Ld increased as p_(g)/p_(e) and d_(c)/d_(c3) increased.When the value of d_(c) was 1.8 to 2.0 times as high as that of dc3,the semi-cone angle of the diffuser ranged between 6°and 12°.At a constant dc/dc3,decreasing T_(c) and pc increased Ld. 关 键 词：Mixing chamber LENGTH Fano flow DIFFUSER diameter ratio expansion ratio optimization method
相关文献

参考文献(33)

耦合文献(9)

网站首页 | 关于我们 | 联系我们 | 产品服务 | 客服中心 | 广告服务 | 版权声明 | 网站联盟 | 友情链接 | 售卡网点

版权所有© 渝B2-20050021-1　渝公网安备 50019002500403号　违法和不良信息举报中心

互联网出版许可证 新出网证(渝)字10号 全国400电话 - 免长途话费