[1]邵俊鹏,刘亚楠. 文丘里管内空化效果影响因素研究[J].哈尔滨理工大学学报,2020,25(03):122-130.[doi:10.15938/j.jhust.2020.03.019]
 SHAO Jun peng,LIU Ya nan. Study on Factors Affecting Cavitation Effect in Venturi Tube[J].哈尔滨理工大学学报,2020,25(03):122-130.[doi:10.15938/j.jhust.2020.03.019]
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文丘里管内空化效果影响因素研究
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《哈尔滨理工大学学报》[ISSN:1007-2683/CN:23-1404/N]

卷:
25
期数:
2020年03期
页码:
122-130
栏目:
机械动力工程
出版日期:
2020-06-25

文章信息/Info

Title:
 Study on Factors Affecting Cavitation Effect in Venturi Tube
文章编号:
1007-2683(2020)03-0122-09
作者:
 邵俊鹏刘亚楠
 哈尔滨理工大学 机械动力工程学院,哈尔滨 150080)
Author(s):
 SHAO JunpengLIU Yanan
 (School of Mechanical Power Engineering, Harbin University of Science and Technology, Harbin 150080, China)
关键词:
 关键词:文丘里管动态空化模型数值模拟
Keywords:
 Keywords:venturi tubedynamic cavitation modelnumerical simulation
分类号:
TL334
DOI:
10.15938/j.jhust.2020.03.019
文献标志码:
A
摘要:
 
摘要:以文丘里管空化发生器为对象,通过考虑水中空气析出与消解过程的时变性,建立了水气两相的动态空化模型。运用FLUENT软件对水气两相流流动问题进行三维数值模拟研究,获得了文丘里管喉口直径、进口压力以及串联文丘里管等对汽含率变化产生影响的规律。数值模拟结果与实验相对比表明,汽含率随进口压力增加而增加,但并非无限增加,存在极限值;随着喉径的增加,文丘里管的空化效果逐渐减弱;相同条件下,串联文丘里管的空化效果不如单个文丘里管的空化效果,即串联文丘里管不能实现两级空化。以上研究对文丘里管的工程应用具有重要意义。
Abstract:
 
Abstract:The dynamic cavitation model of airwater twophase flow was established according to the time variation of air precipitation and digestion process in water, which was used in FLUENT threedimension numerical simulation to simulate the airwater twophase flow, and the variation law of venturi tube throat diameter、inlet pressure and tandem venturi on vapor volume fraction were obtained The results of numerical simulation and experiments show that the vapor volume fraction increases with pressure increasing,But not infinitely increasing, there are limits;As the throat diameter increases, the cavitation effect of the venturi tube gradually decreases;Under the same conditions, the cavitation effect of the tandem venturi is not as good as the cavitation effect of a single venturi, that is, the twostage cavitation cannot be realized by the tandem venturiThe above research is of great significance to the engineering application of venturi tubes

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备注/Memo

备注/Memo:
 收稿日期: 2018-07-09
基金项目: 国家自然科学基金(51405113)
作者简介:
刘亚楠(1991—),男,硕士研究生
通信作者:
邵俊鹏(1959—),男,博士,教授,博士研究生导师,Email:sjp566@sina.com.
更新日期/Last Update: 2020-10-14