IMECH-IR  > 微重力重点实验室
射流泵极限工况下空化流动
Alternative TitleCavitating Flow in Jet Pump under the Operating Limits
龙新平; 姚昊; 赵建福
Source Publication机械工程学报
2009-12-15
Volume45Issue:12Pages:59-64
ISSN0577-6686
Abstract极限工况发生时,液体射流泵喉管中段至末端的汽液两相空化流动为均相泡状流.基于定常、等温及水平流动假设和Wood声速公式,导出极限工况发生时射流泵喉管中段至末端一维均相泡状流的控制方程组.依据该控制方程结合射流泵壁面沿程压力测试结果,计算喉管中段至末端液汽两相流动的马赫数.从喉管的中段至末端液汽两相流动的马赫数逐渐增加,在压力最低点附近达到最大,其最大值为0.94,十分接近1.进一步分析表明,极限工况发生时,射流泵喉管中段至末端液汽两相空化流表现为两相临界流动,其流速达到当地液汽两相流声速,流动出现臃塞,从而导致一定工作压力下吸入流量不再随出口压力的降低而增加,而是保持不变.揭示射流泵极限工况发生的机理,对其深入研究具有重要意义.
Keyword射流泵 空化 极限工况 汽液两相流 临界流 Wood声速公式
Indexed ByCSCD
Language中文
Funding Organization国家自然科学基金资助项目(50579060)
CSCD IDCSCD:3791454
Citation statistics
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/33359
Collection微重力重点实验室
Corresponding Author龙新平
Recommended Citation
GB/T 7714
龙新平,姚昊,赵建福. 射流泵极限工况下空化流动[J]. 机械工程学报,2009,45,12,:59-64.
APA 龙新平,姚昊,&赵建福.(2009).射流泵极限工况下空化流动.机械工程学报,45(12),59-64.
MLA 龙新平,et al."射流泵极限工况下空化流动".机械工程学报 45.12(2009):59-64.
Files in This Item: Download All
File Name/Size DocType Version Access License
c105.pdf(915KB) 开放获取--View Download
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Lanfanshu
Similar articles in Lanfanshu
[龙新平]'s Articles
[姚昊]'s Articles
[赵建福]'s Articles
Baidu academic
Similar articles in Baidu academic
[龙新平]'s Articles
[姚昊]'s Articles
[赵建福]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[龙新平]'s Articles
[姚昊]'s Articles
[赵建福]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: c105.pdf
Format: Adobe PDF
This file does not support browsing at this time
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.