Control of wall pressure flow field with micro jets and control effectiveness

This paper presents an experimental study of airflow from convergent-divergentnozzles discharged into enlarged duct, focusing attention on the flow development in the duct. To investigate the influence of active control on the flow field developed in the duct, the tiny jets of 0.05 mmradiuslocated a...

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Main Authors:	Bashir, Musavir, Azam, Qummare, Khan, Sher Afghan, Baig, Maugal Ahmed Ali
Format:	Article
Language:	English
Published:	IOSR journals 2016
Subjects:	TJ212 Control engineering
Online Access:	http://irep.iium.edu.my/54296/ http://irep.iium.edu.my/54296/ http://irep.iium.edu.my/54296/ http://irep.iium.edu.my/54296/1/qamar-usm.pdf

id	iium-54296
recordtype	eprints
spelling	iium-542962017-01-23T07:48:38Z http://irep.iium.edu.my/54296/ Control of wall pressure flow field with micro jets and control effectiveness Bashir, Musavir Azam, Qummare Khan, Sher Afghan Baig, Maugal Ahmed Ali TJ212 Control engineering This paper presents an experimental study of airflow from convergent-divergentnozzles discharged into enlarged duct, focusing attention on the flow development in the duct. To investigate the influence of active control on the flow field developed in the duct, the tiny jets of 0.05 mmradiuslocated at 900interval along the base at 6.5 mm from the main jet were employed. The Mach number tested in the present study was 1.48. The area ratio tested was 2.56. The NPR tested are from 3, 5, 7, and 9 respectively. The L/D ratio of the duct was varied from 10 to 1. The level of expansion at the nozzle exit influences the wall pressure very strongly. When the micro jets were activated they found to influence the base region, taking the wall pressure to considerably higher values, for most of the cases. Flow field in the duct with and without control remains the same. IOSR journals 2016-12 Article PeerReviewed application/pdf en http://irep.iium.edu.my/54296/1/qamar-usm.pdf Bashir, Musavir and Azam, Qummare and Khan, Sher Afghan and Baig, Maugal Ahmed Ali (2016) Control of wall pressure flow field with micro jets and control effectiveness. IOSR Journal of Machanical & Civil Engineering, 3. pp. 99-107. ISSN 2320-334x E-ISSN 2278-1684 http://www.iosrjournals.org/ http://www.iosrjournals.org/iosr-jmce/pages/i-%20CAM2K16(Mech)-volume-3.html
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English
topic	TJ212 Control engineering
spellingShingle	TJ212 Control engineering Bashir, Musavir Azam, Qummare Khan, Sher Afghan Baig, Maugal Ahmed Ali Control of wall pressure flow field with micro jets and control effectiveness
description	This paper presents an experimental study of airflow from convergent-divergentnozzles discharged into enlarged duct, focusing attention on the flow development in the duct. To investigate the influence of active control on the flow field developed in the duct, the tiny jets of 0.05 mmradiuslocated at 900interval along the base at 6.5 mm from the main jet were employed. The Mach number tested in the present study was 1.48. The area ratio tested was 2.56. The NPR tested are from 3, 5, 7, and 9 respectively. The L/D ratio of the duct was varied from 10 to 1. The level of expansion at the nozzle exit influences the wall pressure very strongly. When the micro jets were activated they found to influence the base region, taking the wall pressure to considerably higher values, for most of the cases. Flow field in the duct with and without control remains the same.
format	Article
author	Bashir, Musavir Azam, Qummare Khan, Sher Afghan Baig, Maugal Ahmed Ali
author_facet	Bashir, Musavir Azam, Qummare Khan, Sher Afghan Baig, Maugal Ahmed Ali
author_sort	Bashir, Musavir
title	Control of wall pressure flow field with micro jets and control effectiveness
title_short	Control of wall pressure flow field with micro jets and control effectiveness
title_full	Control of wall pressure flow field with micro jets and control effectiveness
title_fullStr	Control of wall pressure flow field with micro jets and control effectiveness
title_full_unstemmed	Control of wall pressure flow field with micro jets and control effectiveness
title_sort	control of wall pressure flow field with micro jets and control effectiveness
publisher	IOSR journals
publishDate	2016
url	http://irep.iium.edu.my/54296/ http://irep.iium.edu.my/54296/ http://irep.iium.edu.my/54296/ http://irep.iium.edu.my/54296/1/qamar-usm.pdf
first_indexed	2023-09-18T21:16:50Z
last_indexed	2023-09-18T21:16:50Z
_version_	1777411618847588352

Control of wall pressure flow field with micro jets and control effectiveness

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