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Estimation of stability derivatives in pitch for an oscillating 2-D wedge in supersonic Flow

A similitude has been obtained for a pitching oscillating two dimensional wedge with attached bow shock at high angle of incidence in supersonic flow. A strip theory given by Ghosh [1] for flow in spanwise location has been used. For the two-dimensional flow, a normal shock is formed directly in fro...

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Main Authors: Pavithra, Shanbhag,, Bashir, Musavir, S, Lavanya, Khan, Sher Afghan
Format: Article
Language:English
English
Published: Pushpa Publishing House, Allahabad, India 2016
Subjects:
TL500 Aeronautics
Online Access:http://irep.iium.edu.my/53876/1/PPH-I-1617-158-FM%20-%20Final%20Version%20%281%29.pdf
http://irep.iium.edu.my/53876/7/53876_estimation%20of%20stability_Scopus.pdf
http://irep.iium.edu.my/53876/
http://www.pphmj.com
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spelling my.iium.irep.538762017-04-13T07:38:48Z http://irep.iium.edu.my/53876/ Estimation of stability derivatives in pitch for an oscillating 2-D wedge in supersonic Flow Pavithra, Shanbhag, Bashir, Musavir S, Lavanya Khan, Sher Afghan TL500 Aeronautics A similitude has been obtained for a pitching oscillating two dimensional wedge with attached bow shock at high angle of incidence in supersonic flow. A strip theory given by Ghosh [1] for flow in spanwise location has been used. For the two-dimensional flow, a normal shock is formed directly in front of the body and becomes a curved oblique shock as it extends around the body. This integrates with the similitude model leading to one-dimensional piston theory reformulated by Ghosh [1] from initial works of Lighthill [2] and Miles [3]. Therefore, precise form of simple relations for damping and stiffness derivatives in pitch has been obtained. The present theory is valid only for shock wave which is attached with the nose of the wedge. From the combination of theory developed, we can evaluate the derivatives for stiffness and damping in pitch for a wide range of supersonic Mach numbers, for various pivot positions, and angle of incidence. Substantially the same results are being validated with the analytical results of Liu and Hui [4] with great simplicity. Pushpa Publishing House, Allahabad, India 2016-10 Article REM application/pdf en http://irep.iium.edu.my/53876/1/PPH-I-1617-158-FM%20-%20Final%20Version%20%281%29.pdf application/pdf en http://irep.iium.edu.my/53876/7/53876_estimation%20of%20stability_Scopus.pdf Pavithra, Shanbhag, and Bashir, Musavir and S, Lavanya and Khan, Sher Afghan (2016) Estimation of stability derivatives in pitch for an oscillating 2-D wedge in supersonic Flow. Advances and Applications in Fluid Mechanics, 19 (4). pp. 873-882. ISSN 0973-4686 http://www.pphmj.com
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
English
topic TL500 Aeronautics
spellingShingle TL500 Aeronautics
Pavithra, Shanbhag,
Bashir, Musavir
S, Lavanya
Khan, Sher Afghan
Estimation of stability derivatives in pitch for an oscillating 2-D wedge in supersonic Flow
description A similitude has been obtained for a pitching oscillating two dimensional wedge with attached bow shock at high angle of incidence in supersonic flow. A strip theory given by Ghosh [1] for flow in spanwise location has been used. For the two-dimensional flow, a normal shock is formed directly in front of the body and becomes a curved oblique shock as it extends around the body. This integrates with the similitude model leading to one-dimensional piston theory reformulated by Ghosh [1] from initial works of Lighthill [2] and Miles [3]. Therefore, precise form of simple relations for damping and stiffness derivatives in pitch has been obtained. The present theory is valid only for shock wave which is attached with the nose of the wedge. From the combination of theory developed, we can evaluate the derivatives for stiffness and damping in pitch for a wide range of supersonic Mach numbers, for various pivot positions, and angle of incidence. Substantially the same results are being validated with the analytical results of Liu and Hui [4] with great simplicity.
format Article
author Pavithra, Shanbhag,
Bashir, Musavir
S, Lavanya
Khan, Sher Afghan
author_facet Pavithra, Shanbhag,
Bashir, Musavir
S, Lavanya
Khan, Sher Afghan
author_sort Pavithra, Shanbhag,
title Estimation of stability derivatives in pitch for an oscillating 2-D wedge in supersonic Flow
title_short Estimation of stability derivatives in pitch for an oscillating 2-D wedge in supersonic Flow
title_full Estimation of stability derivatives in pitch for an oscillating 2-D wedge in supersonic Flow
title_fullStr Estimation of stability derivatives in pitch for an oscillating 2-D wedge in supersonic Flow
title_full_unstemmed Estimation of stability derivatives in pitch for an oscillating 2-D wedge in supersonic Flow
title_sort estimation of stability derivatives in pitch for an oscillating 2-d wedge in supersonic flow
publisher Pushpa Publishing House, Allahabad, India
publishDate 2016
url http://irep.iium.edu.my/53876/1/PPH-I-1617-158-FM%20-%20Final%20Version%20%281%29.pdf
http://irep.iium.edu.my/53876/7/53876_estimation%20of%20stability_Scopus.pdf
http://irep.iium.edu.my/53876/
http://www.pphmj.com
_version_ 1643614435295625216
score 13.211869

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