Effect of area ratio on base pressure and control effectiveness

Reducing the base drag and increasing the base pressure from aerodynamic devices involving suddenly expanded flows is of vital importance due to the higher rate of drag associated with them. The experimental effort put into understanding the variation in base pressure using active control of suddenl...

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Main Authors:	G. M., Fharukh Ahmed, Khan, Sher Afghan
Format:	Article
Language:	English English
Published:	Blue Eyes Intelligence Engineering & Sciences 2019
Subjects:	TL787 Astronautics
Online Access:	http://irep.iium.edu.my/73975/ http://irep.iium.edu.my/73975/ http://irep.iium.edu.my/73975/ http://irep.iium.edu.my/73975/1/FGM-SAK.pdf http://irep.iium.edu.my/73975/7/73975_Effect%20of%20area%20ratio%20on%20base%20pressure_scopus.pdf

id	iium-73975
recordtype	eprints
spelling	iium-739752019-09-24T06:52:43Z http://irep.iium.edu.my/73975/ Effect of area ratio on base pressure and control effectiveness G. M., Fharukh Ahmed Khan, Sher Afghan TL787 Astronautics Reducing the base drag and increasing the base pressure from aerodynamic devices involving suddenly expanded flows is of vital importance due to the higher rate of drag associated with them. The experimental effort put into understanding the variation in base pressure using active control of suddenly expanded flows employing microjets is reported in this article. The effect of tiny jets and nozzle pressure ratio (NPR), and length to diameter (L/D) ratio on the percentage change in base pressure is investigated at supersonic Mach numbers at 1.7, 2.3, and 2.7, for area ratios of 2.56, 5.06, and 7.56. Apart from NPR, the L/D ratio has an influential role in percentage change in base pressure at different Mach numbers. An improvement of up to 360 % in base pressure is obtained with the use of sonic microjets at a particular Mach number and L/D ratio. Blue Eyes Intelligence Engineering & Sciences 2019-07 Article PeerReviewed application/pdf en http://irep.iium.edu.my/73975/1/FGM-SAK.pdf application/pdf en http://irep.iium.edu.my/73975/7/73975_Effect%20of%20area%20ratio%20on%20base%20pressure_scopus.pdf G. M., Fharukh Ahmed and Khan, Sher Afghan (2019) Effect of area ratio on base pressure and control effectiveness. International Journal of Recent Technology and Engineering, 8 (2S3). pp. 953-958. E-ISSN 2277-3878 https://www.ijrte.org/wp-content/uploads/papers/v8i2S3/B11790782S319.pdf 10.35940/ijrte.B1179.0782S319
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English English
topic	TL787 Astronautics
spellingShingle	TL787 Astronautics G. M., Fharukh Ahmed Khan, Sher Afghan Effect of area ratio on base pressure and control effectiveness
description	Reducing the base drag and increasing the base pressure from aerodynamic devices involving suddenly expanded flows is of vital importance due to the higher rate of drag associated with them. The experimental effort put into understanding the variation in base pressure using active control of suddenly expanded flows employing microjets is reported in this article. The effect of tiny jets and nozzle pressure ratio (NPR), and length to diameter (L/D) ratio on the percentage change in base pressure is investigated at supersonic Mach numbers at 1.7, 2.3, and 2.7, for area ratios of 2.56, 5.06, and 7.56. Apart from NPR, the L/D ratio has an influential role in percentage change in base pressure at different Mach numbers. An improvement of up to 360 % in base pressure is obtained with the use of sonic microjets at a particular Mach number and L/D ratio.
format	Article
author	G. M., Fharukh Ahmed Khan, Sher Afghan
author_facet	G. M., Fharukh Ahmed Khan, Sher Afghan
author_sort	G. M., Fharukh Ahmed
title	Effect of area ratio on base pressure and control effectiveness
title_short	Effect of area ratio on base pressure and control effectiveness
title_full	Effect of area ratio on base pressure and control effectiveness
title_fullStr	Effect of area ratio on base pressure and control effectiveness
title_full_unstemmed	Effect of area ratio on base pressure and control effectiveness
title_sort	effect of area ratio on base pressure and control effectiveness
publisher	Blue Eyes Intelligence Engineering & Sciences
publishDate	2019
url	http://irep.iium.edu.my/73975/ http://irep.iium.edu.my/73975/ http://irep.iium.edu.my/73975/ http://irep.iium.edu.my/73975/1/FGM-SAK.pdf http://irep.iium.edu.my/73975/7/73975_Effect%20of%20area%20ratio%20on%20base%20pressure_scopus.pdf
first_indexed	2023-09-18T21:44:52Z
last_indexed	2023-09-18T21:44:52Z
_version_	1777413382250430464

Effect of area ratio on base pressure and control effectiveness

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