Wall pressure studies in a suddenly expanded flow for area ratio 2.56”
This paper presents the results of an experimental work carried out to find the wall pressure distribution in a suddenly expanded duct. The enlarged duct is attached to the exit of a convergent- divergent axisymmetric nozzle. The area ratio (i.e. ratio between cross sectional area of the sudden expa...
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IJERA
2012
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| Online Access: | http://irep.iium.edu.my/49926/ http://irep.iium.edu.my/49926/ http://irep.iium.edu.my/49926/1/baig_m_a_-_2012_-_IJERA_2_Wall_Pressure_Studies.pdf |
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iium-499262016-07-18T02:24:57Z http://irep.iium.edu.my/49926/ Wall pressure studies in a suddenly expanded flow for area ratio 2.56” Baig, Maugal Ahmed Ali Khan, Sher Afghan Rathakrishnan, E. TL Motor vehicles. Aeronautics. Astronautics TL787 Astronautics This paper presents the results of an experimental work carried out to find the wall pressure distribution in a suddenly expanded duct. The enlarged duct is attached to the exit of a convergent- divergent axisymmetric nozzle. The area ratio (i.e. ratio between cross sectional area of the sudden expansion duct and the nozzle exit area) considered in the present study is 2.56. The jet entering the suddenly expanded duct is at supersonic Mach numbers regime of 1.87, 2.2 and 2.58. The length to diameter ratio considered is 10. The nozzle pressure ratio (NPR) used is 3, 5, 7, 9, and 11 for all the Mach numbers. An active control method in the form of Microjets is used to control the base pressure. The prime investigations are towards finding the effect of Microjets on wall pressure for above said parametric conditions. It is found that the duct wall pressure distribution, which usually becomes oscillatory when controls are employed, does not get adversely affected with Micro jets. IJERA 2012-09 Article PeerReviewed application/pdf en http://irep.iium.edu.my/49926/1/baig_m_a_-_2012_-_IJERA_2_Wall_Pressure_Studies.pdf Baig, Maugal Ahmed Ali and Khan, Sher Afghan and Rathakrishnan, E. (2012) Wall pressure studies in a suddenly expanded flow for area ratio 2.56”. International Journal of Engineering Research and Application, 2 (5). pp. 1566-1573. ISSN 2248-9622 http://www.ijera.com |
| repository_type |
Digital Repository |
| institution_category |
Local University |
| institution |
International Islamic University Malaysia |
| building |
IIUM Repository |
| collection |
Online Access |
| 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. Wall pressure studies in a suddenly expanded flow for area ratio 2.56” |
| description |
This paper presents the results of an experimental work carried out to find the wall pressure distribution in a suddenly expanded duct. The enlarged duct is attached to the exit of a convergent- divergent axisymmetric nozzle. The area ratio (i.e. ratio between cross sectional area of the sudden expansion duct and the nozzle exit area) considered in the present study is 2.56. The jet entering the suddenly expanded duct is at supersonic Mach numbers regime of 1.87, 2.2 and 2.58. The length to diameter ratio considered is 10. The nozzle pressure ratio (NPR) used is 3, 5, 7, 9, and 11 for all the Mach numbers. An active control method in the form of Microjets is used to control the base pressure. The prime investigations are towards finding the effect of Microjets on wall pressure for above said parametric conditions. It is found that the duct wall pressure distribution, which usually becomes oscillatory when controls are employed, does not get adversely affected with Micro jets. |
| 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 |
Wall pressure studies in a suddenly expanded flow for area ratio 2.56” |
| title_short |
Wall pressure studies in a suddenly expanded flow for area ratio 2.56” |
| title_full |
Wall pressure studies in a suddenly expanded flow for area ratio 2.56” |
| title_fullStr |
Wall pressure studies in a suddenly expanded flow for area ratio 2.56” |
| title_full_unstemmed |
Wall pressure studies in a suddenly expanded flow for area ratio 2.56” |
| title_sort |
wall pressure studies in a suddenly expanded flow for area ratio 2.56” |
| publisher |
IJERA |
| publishDate |
2012 |
| url |
http://irep.iium.edu.my/49926/ http://irep.iium.edu.my/49926/ http://irep.iium.edu.my/49926/1/baig_m_a_-_2012_-_IJERA_2_Wall_Pressure_Studies.pdf |
| first_indexed |
2023-09-18T21:10:32Z |
| last_indexed |
2023-09-18T21:10:32Z |
| _version_ |
1777411222826647552 |