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/ http://irep.iium.edu.my/53876/ 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

id	iium-53876
recordtype	eprints
spelling	iium-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 PeerReviewed 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
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
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/ http://irep.iium.edu.my/53876/ 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
first_indexed	2023-09-18T21:16:12Z
last_indexed	2023-09-18T21:16:12Z
_version_	1777411579122286592

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

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