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A LES Study on Passive Mixing in Supersonic Shear Layer Flows Considering Effects of Baffle Configuration
Advances in Mechanical Engineering, Volume: 6, Start page: 836146
Swansea University Author: Zhaoxin Ren
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Copyright © 2014 R. Zhao-Xin and W. Bing. This is an open access article distributed under the Creative Commons Attribution License
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DOI (Published version): 10.1155/2014/836146
Abstract
Under the background of dual combustor ramjet (DCR), a numerical investigation of supersonic mixing layer was launched, focused on the mixing enhancement method of applying baffles with different geometric configurations. Large eddy simulation with high order schemes, containing a fifth-order hybrid...
Published in: | Advances in Mechanical Engineering |
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ISSN: | 1687-8140 1687-8140 |
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2014
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URI: | https://cronfa.swan.ac.uk/Record/cronfa59362 |
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2022-02-23T15:46:17.1551622 v2 59362 2022-02-11 A LES Study on Passive Mixing in Supersonic Shear Layer Flows Considering Effects of Baffle Configuration 62a1a0da0fa78e05c3deafcdee5551ce 0000-0002-6305-9515 Zhaoxin Ren Zhaoxin Ren true false 2022-02-11 AERO Under the background of dual combustor ramjet (DCR), a numerical investigation of supersonic mixing layer was launched, focused on the mixing enhancement method of applying baffles with different geometric configurations. Large eddy simulation with high order schemes, containing a fifth-order hybrid WENO compact scheme for the convective flux and sixth-order compact one for the viscous flux, was utilized to numerically study the development of the supersonic mixing layer. The supersonic cavity flow was simulated and the cavity configuration could influence the mixing characteristics, since the impingement process of large scale structures formed inside the cavity could raise the vorticity and promote the mixing. The effect of baffle's configurations on the mixing process was analyzed by comparing the flow properties, mixing efficiency, and total pressure loss. The baffle could induce large scale vortexes, promote the mixing layer to lose its stability easily, and then lead to the mixing efficiency enhancement. However, the baffle could increase the total pressure loss. The present investigation could provide guidance for applying new passive mixing enhancement methods for the supersonic mixing. Journal Article Advances in Mechanical Engineering 6 836146 SAGE Publications 1687-8140 1687-8140 1 1 2014 2014-01-01 10.1155/2014/836146 COLLEGE NANME Aerospace Engineering COLLEGE CODE AERO Swansea University The research work is partially supported by “The Importation and Development of High-Caliber Talents Project of Beijing Municipal Institutions”. 2022-02-23T15:46:17.1551622 2022-02-11T01:09:44.8607051 Faculty of Science and Engineering School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Aerospace Engineering Zhaoxin Ren 0000-0002-6305-9515 1 Wang Bing 2 59362__22446__4e385ce03db342fcac51fc27ce6bca15.pdf 59362.pdf 2022-02-23T15:45:20.1364626 Output 2722169 application/pdf Version of Record true Copyright © 2014 R. Zhao-Xin and W. Bing. This is an open access article distributed under the Creative Commons Attribution License true eng http://creativecommons.org/licenses/by/3.0/ |
title |
A LES Study on Passive Mixing in Supersonic Shear Layer Flows Considering Effects of Baffle Configuration |
spellingShingle |
A LES Study on Passive Mixing in Supersonic Shear Layer Flows Considering Effects of Baffle Configuration Zhaoxin Ren |
title_short |
A LES Study on Passive Mixing in Supersonic Shear Layer Flows Considering Effects of Baffle Configuration |
title_full |
A LES Study on Passive Mixing in Supersonic Shear Layer Flows Considering Effects of Baffle Configuration |
title_fullStr |
A LES Study on Passive Mixing in Supersonic Shear Layer Flows Considering Effects of Baffle Configuration |
title_full_unstemmed |
A LES Study on Passive Mixing in Supersonic Shear Layer Flows Considering Effects of Baffle Configuration |
title_sort |
A LES Study on Passive Mixing in Supersonic Shear Layer Flows Considering Effects of Baffle Configuration |
author_id_str_mv |
62a1a0da0fa78e05c3deafcdee5551ce |
author_id_fullname_str_mv |
62a1a0da0fa78e05c3deafcdee5551ce_***_Zhaoxin Ren |
author |
Zhaoxin Ren |
author2 |
Zhaoxin Ren Wang Bing |
format |
Journal article |
container_title |
Advances in Mechanical Engineering |
container_volume |
6 |
container_start_page |
836146 |
publishDate |
2014 |
institution |
Swansea University |
issn |
1687-8140 1687-8140 |
doi_str_mv |
10.1155/2014/836146 |
publisher |
SAGE Publications |
college_str |
Faculty of Science and Engineering |
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|
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facultyofscienceandengineering |
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Faculty of Science and Engineering |
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facultyofscienceandengineering |
hierarchy_parent_title |
Faculty of Science and Engineering |
department_str |
School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Aerospace Engineering{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Aerospace Engineering |
document_store_str |
1 |
active_str |
0 |
description |
Under the background of dual combustor ramjet (DCR), a numerical investigation of supersonic mixing layer was launched, focused on the mixing enhancement method of applying baffles with different geometric configurations. Large eddy simulation with high order schemes, containing a fifth-order hybrid WENO compact scheme for the convective flux and sixth-order compact one for the viscous flux, was utilized to numerically study the development of the supersonic mixing layer. The supersonic cavity flow was simulated and the cavity configuration could influence the mixing characteristics, since the impingement process of large scale structures formed inside the cavity could raise the vorticity and promote the mixing. The effect of baffle's configurations on the mixing process was analyzed by comparing the flow properties, mixing efficiency, and total pressure loss. The baffle could induce large scale vortexes, promote the mixing layer to lose its stability easily, and then lead to the mixing efficiency enhancement. However, the baffle could increase the total pressure loss. The present investigation could provide guidance for applying new passive mixing enhancement methods for the supersonic mixing. |
published_date |
2014-01-01T04:16:37Z |
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1763754111992332288 |
score |
11.013148 |