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Studies on suddenly expanded flow at different levels of over expansion for area ratio 3.24

The experimental investigations carried out to study the variations in base pressure at different levels of over expansion of jet in a suddenly expanded axi-symmetric duct is presented in this paper. The two different fixed levels of Over Expansion selected in the study are 0.277 and 0.56. The area...

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Main Authors: Baig, Maugal Ahmed Ali, Khan, Sher Afghan, Rathakrishnan, E.
Format: Article
Language:English
Published: IJSER 2012
Subjects:
TL Motor vehicles. Aeronautics. Astronautics
TL787 Astronautics
Online Access:http://irep.iium.edu.my/49923/1/baig_m_a_-_2012_-_IJSER_Journal_A_Study_on_Suddenly.pdf
http://irep.iium.edu.my/49923/
http://www.ijser.org/ResearchPaperPublishing_August2012.aspx
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spelling my.iium.irep.499232016-04-15T08:54:00Z http://irep.iium.edu.my/49923/ Studies on suddenly expanded flow at different levels of over expansion for area ratio 3.24 Baig, Maugal Ahmed Ali Khan, Sher Afghan Rathakrishnan, E. TL Motor vehicles. Aeronautics. Astronautics TL787 Astronautics The experimental investigations carried out to study the variations in base pressure at different levels of over expansion of jet in a suddenly expanded axi-symmetric duct is presented in this paper. The two different fixed levels of Over Expansion selected in the study are 0.277 and 0.56. The area ratio of the present study is 3.24. The jet Mach numbers at the entry to the suddenly expanded duct, studied are 2.2 and 2.58. The length-to-diameter ratio of the suddenly expanded duct is varied from 10 to 1. Active control in the form of four micro jets of 1mm orifice diameter located at 900 intervals along a pitch circle diameter of 1.3 times the nozzle exit diameter in the base region are employed. In addition to base pressure, wall pressure field along the duct is also studied. From the present studies it is found that at a high level of over expansion micro jets are marginally effective. It is also found from wall pressure studies that the micro jets do not disturb the flow field in the enlarged duct. IJSER 2012-08 Article REM application/pdf en http://irep.iium.edu.my/49923/1/baig_m_a_-_2012_-_IJSER_Journal_A_Study_on_Suddenly.pdf Baig, Maugal Ahmed Ali and Khan, Sher Afghan and Rathakrishnan, E. (2012) Studies on suddenly expanded flow at different levels of over expansion for area ratio 3.24. International Journal of Scientific & Engineering Research, 3 (8). pp. 1-6. ISSN 2229-5518 http://www.ijser.org/ResearchPaperPublishing_August2012.aspx
institution Universiti Islam Antarabangsa Malaysia
building IIUM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider International Islamic University Malaysia
content_source IIUM Repository (IREP)
url_provider http://irep.iium.edu.my/
language English
topic TL Motor vehicles. Aeronautics. Astronautics
TL787 Astronautics
spellingShingle TL Motor vehicles. Aeronautics. Astronautics
TL787 Astronautics
Baig, Maugal Ahmed Ali
Khan, Sher Afghan
Rathakrishnan, E.
Studies on suddenly expanded flow at different levels of over expansion for area ratio 3.24
description The experimental investigations carried out to study the variations in base pressure at different levels of over expansion of jet in a suddenly expanded axi-symmetric duct is presented in this paper. The two different fixed levels of Over Expansion selected in the study are 0.277 and 0.56. The area ratio of the present study is 3.24. The jet Mach numbers at the entry to the suddenly expanded duct, studied are 2.2 and 2.58. The length-to-diameter ratio of the suddenly expanded duct is varied from 10 to 1. Active control in the form of four micro jets of 1mm orifice diameter located at 900 intervals along a pitch circle diameter of 1.3 times the nozzle exit diameter in the base region are employed. In addition to base pressure, wall pressure field along the duct is also studied. From the present studies it is found that at a high level of over expansion micro jets are marginally effective. It is also found from wall pressure studies that the micro jets do not disturb the flow field in the enlarged duct.
format Article
author Baig, Maugal Ahmed Ali
Khan, Sher Afghan
Rathakrishnan, E.
author_facet Baig, Maugal Ahmed Ali
Khan, Sher Afghan
Rathakrishnan, E.
author_sort Baig, Maugal Ahmed Ali
title Studies on suddenly expanded flow at different levels of over expansion for area ratio 3.24
title_short Studies on suddenly expanded flow at different levels of over expansion for area ratio 3.24
title_full Studies on suddenly expanded flow at different levels of over expansion for area ratio 3.24
title_fullStr Studies on suddenly expanded flow at different levels of over expansion for area ratio 3.24
title_full_unstemmed Studies on suddenly expanded flow at different levels of over expansion for area ratio 3.24
title_sort studies on suddenly expanded flow at different levels of over expansion for area ratio 3.24
publisher IJSER
publishDate 2012
url http://irep.iium.edu.my/49923/1/baig_m_a_-_2012_-_IJSER_Journal_A_Study_on_Suddenly.pdf
http://irep.iium.edu.my/49923/
http://www.ijser.org/ResearchPaperPublishing_August2012.aspx
_version_ 1643613625138544640
score 13.211869

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