NSSC OpenIR  > 空间科学部
Alternative TitleLarge-Eddy Simula t ion of a Round Turbulent Jetunder the Flow Ax isymmetr ic Assumption
范全林; 张会强; 郭印诚; 王希麟; 林文漪; 北京8701信箱
Source Publication燃烧科学与技术
Keyword大涡模拟 拟序结构 圆湍射流 数值模拟 不可压缩流动
Other AbstractLargeeddy simulat ion results are repo rted fo r an unfo rced, incomp ressible, spat ially develop ing turbulent round jet at a moderate Reyno lds number, R e= 11 300, using the fract ional-step p ro ject ion method. U nder the flow axisymmet ric assump t ion, the unsteady evo lut ion p rocesses of the coherent st ructures have been successfully rep re-sented, as a result of the development of the Kelvin2Helmho ltz instability of the shear layer in the p roximal region of the jet flow. The ro ll2up of the primary vo rtex rings and succeeding vo rtex-pairing phenomena of the round jet have been numerically visualized. How ever,the tear-up of the large-scale st ructures could no t be rep roduced under the axisymmet ric assump t ion. Detailed stat ist ical propert ies of the round turbulent jet are also obtained th rough the present L ES wo rk. The po tent ial co re of the round turbulent jet p redicted is co incident w ith the analyt ical results.But the further decrease of the t ime2averaged st ream 2w ise velocity component is slow under the flow axisymmet ric assump t ion compared to the experimental data. The po ssible causes fo r such phenomena have been suggested on the basis of coherent st ructure dynam ics and th rough analyzing the int rinsic characterist ic of governing equations.
Indexed ByCSCD
Funding Project中国科学院空间科学与应用研究中心
Citation statistics
Cited Times:2[CSCD]   [CSCD Record]
Document Type期刊论文
Corresponding Author北京8701信箱
Recommended Citation
GB/T 7714
范全林,张会强,郭印诚,等. 圆湍射流的轴对称大涡模拟[J]. 燃烧科学与技术,2001,7(4):248-251.
APA 范全林,张会强,郭印诚,王希麟,林文漪,&北京8701信箱.(2001).圆湍射流的轴对称大涡模拟.燃烧科学与技术,7(4),248-251.
MLA 范全林,et al."圆湍射流的轴对称大涡模拟".燃烧科学与技术 7.4(2001):248-251.
Files in This Item: Download All
File Name/Size DocType Version Access License
200174248.pdf(335KB) 开放获取CC BY-NC-SAView Download
Related Services
Recommend this item
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[范全林]'s Articles
[张会强]'s Articles
[郭印诚]'s Articles
Baidu academic
Similar articles in Baidu academic
[范全林]'s Articles
[张会强]'s Articles
[郭印诚]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[范全林]'s Articles
[张会强]'s Articles
[郭印诚]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: 200174248.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.