Supersonic similitude for oscillating non-planar wedge
A similitude has been obtained for a pitching oscillating Non planar wedge with attached bow shock at high angle of attack in supersonic flow. A strip theory in which flow at a span wise location is two dimensional and independent of each other is being used. This combines with the similitude to lea...
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International Organization of Scientific Research (IOSR) Journals
2014
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| Online Access: | http://irep.iium.edu.my/49936/ http://irep.iium.edu.my/49936/ http://irep.iium.edu.my/49936/ http://irep.iium.edu.my/49936/1/C010261524-paper6.pdf |
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eprints |
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iium-499362018-06-20T06:49:11Z http://irep.iium.edu.my/49936/ Supersonic similitude for oscillating non-planar wedge Crasta, Asha Khan, Sher Afghan TL500 Aeronautics A similitude has been obtained for a pitching oscillating Non planar wedge with attached bow shock at high angle of attack in supersonic flow. A strip theory in which flow at a span wise location is two dimensional and independent of each other is being used. This combines with the similitude to lead to a one-dimensional piston theory. Closed form of simple relations is obtained for stiffness and damping derivatives in pitch. The present theory is valid only when the shock wave is attached with the nose of the wedge. From the theory developed some of the results are obtained for wide range of Mach number and angle of attack with remarkable computational ease. From the results it is found that when convexity is introduced in the non-planar wedge, this results in shifting of the center of pressure towards the leading edge, and the stiffness as well as the damping derivative decreases with the increase in the Mach number for all the values of the semi vertex angles. International Organization of Scientific Research (IOSR) Journals 2014-03 Article PeerReviewed application/pdf en http://irep.iium.edu.my/49936/1/C010261524-paper6.pdf Crasta, Asha and Khan, Sher Afghan (2014) Supersonic similitude for oscillating non-planar wedge. IOSR Journal of Mathematics (IOSR-JM), 10 (2vVI). pp. 15-24. ISSN 2319-7676 E-ISSN 2278-3008 http://www.iosrjournals.org/iosr-jm/papers/Vol10-issue2/Version-6/C010261524.pdf 10.9790/5728-10261524 |
| repository_type |
Digital Repository |
| institution_category |
Local University |
| institution |
International Islamic University Malaysia |
| building |
IIUM Repository |
| collection |
Online Access |
| language |
English |
| topic |
TL500 Aeronautics |
| spellingShingle |
TL500 Aeronautics Crasta, Asha Khan, Sher Afghan Supersonic similitude for oscillating non-planar wedge |
| description |
A similitude has been obtained for a pitching oscillating Non planar wedge with attached bow shock at high angle of attack in supersonic flow. A strip theory in which flow at a span wise location is two dimensional and independent of each other is being used. This combines with the similitude to lead to a one-dimensional piston theory. Closed form of simple relations is obtained for stiffness and damping derivatives in pitch. The present theory is valid only when the shock wave is attached with the nose of the wedge. From the theory developed some of the results are obtained for wide range of Mach number and angle of attack with remarkable computational ease. From the results it is found that when convexity is introduced in the non-planar wedge, this results in shifting of the center of pressure towards the leading edge, and the stiffness as well as the damping derivative decreases with the increase in the Mach number for all the values of the semi vertex angles. |
| format |
Article |
| author |
Crasta, Asha Khan, Sher Afghan |
| author_facet |
Crasta, Asha Khan, Sher Afghan |
| author_sort |
Crasta, Asha |
| title |
Supersonic similitude for oscillating non-planar wedge |
| title_short |
Supersonic similitude for oscillating non-planar wedge |
| title_full |
Supersonic similitude for oscillating non-planar wedge |
| title_fullStr |
Supersonic similitude for oscillating non-planar wedge |
| title_full_unstemmed |
Supersonic similitude for oscillating non-planar wedge |
| title_sort |
supersonic similitude for oscillating non-planar wedge |
| publisher |
International Organization of Scientific Research (IOSR) Journals |
| publishDate |
2014 |
| url |
http://irep.iium.edu.my/49936/ http://irep.iium.edu.my/49936/ http://irep.iium.edu.my/49936/ http://irep.iium.edu.my/49936/1/C010261524-paper6.pdf |
| first_indexed |
2023-09-18T21:10:34Z |
| last_indexed |
2023-09-18T21:10:34Z |
| _version_ |
1777411224292556800 |