Defining reference area for prediction of aerodynamic coefficients of a biologically inspired hybrid buoyant vehicle

Geometric and volumetric quantities are usually used to define the reference area for the prediction of aerodynamic coefficients of various aquatic mammals, airships and unmanned vehicle. However, reference area does not have a unique definition, especially for a hybrid buoyant aerial vehicle having...

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Main Authors:	Haque, Anwar Ul, Asrar, Waqar, Omar, Ashraf Ali, Sulaeman, Erwin
Format:	Article
Language:	English English
Published:	World Scientific Publishing Co. Pte Ltd 2017
Subjects:	T Technology (General) TL Motor vehicles. Aeronautics. Astronautics
Online Access:	http://irep.iium.edu.my/62805/ http://irep.iium.edu.my/62805/ http://irep.iium.edu.my/62805/ http://irep.iium.edu.my/62805/1/62805_Defining%20Reference%20Area%20for%20Prediction%20of%20Aerodynamic_article.pdf http://irep.iium.edu.my/62805/2/62805_Defining%20Reference%20Area%20for%20Prediction%20of%20Aerodynamic_scopus.pdf

id	iium-62805
recordtype	eprints
spelling	iium-628052018-07-10T10:27:36Z http://irep.iium.edu.my/62805/ Defining reference area for prediction of aerodynamic coefficients of a biologically inspired hybrid buoyant vehicle Haque, Anwar Ul Asrar, Waqar Omar, Ashraf Ali Sulaeman, Erwin T Technology (General) TL Motor vehicles. Aeronautics. Astronautics Geometric and volumetric quantities are usually used to define the reference area for the prediction of aerodynamic coefficients of various aquatic mammals, airships and unmanned vehicle. However, reference area does not have a unique definition, especially for a hybrid buoyant aerial vehicle having hybrid lifting hull which resembles a Steller sea lion. The term square cube root of volume is traditionally used as reference area to nondimensionalize the aerodynamic forces for conventional as well as unconventional airships. Published experimental data are usually available for complete configuration at low speed and in nondimensionalized form. So, a generic model of an aircraft's fuselage was first tested in a wind tunnel as a test case to first determine the lift force and then the influence of different choices of reference area on the lift. A hybrid lifting hull was numerically simulated for the prediction of lift as well as drag coefficients and their ratio. It was found that the volumetric term has undefined correlation with aerodynamic forces in both cases. Changes in aerodynamic coefficients are not prominent when using the wetted area as the reference area. Based on the predicted trends of aerodynamic coefficients and a deep literature survey, the projected planform area is proposed as the best option for reference area of a Steller sea lion as well as for hybrid lifting hull of a hybrid buoyant vehicle. World Scientific Publishing Co. Pte Ltd 2017-10-01 Article PeerReviewed application/pdf en http://irep.iium.edu.my/62805/1/62805_Defining%20Reference%20Area%20for%20Prediction%20of%20Aerodynamic_article.pdf application/pdf en http://irep.iium.edu.my/62805/2/62805_Defining%20Reference%20Area%20for%20Prediction%20of%20Aerodynamic_scopus.pdf Haque, Anwar Ul and Asrar, Waqar and Omar, Ashraf Ali and Sulaeman, Erwin (2017) Defining reference area for prediction of aerodynamic coefficients of a biologically inspired hybrid buoyant vehicle. Unmanned Systems, 5 (4). pp. 237-246. ISSN 2301-3850 https://www.worldscientific.com/doi/pdfplus/10.1142/S230138501750011X 10.1007/s11306-017-1273-0
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English English
topic	T Technology (General) TL Motor vehicles. Aeronautics. Astronautics
spellingShingle	T Technology (General) TL Motor vehicles. Aeronautics. Astronautics Haque, Anwar Ul Asrar, Waqar Omar, Ashraf Ali Sulaeman, Erwin Defining reference area for prediction of aerodynamic coefficients of a biologically inspired hybrid buoyant vehicle
description	Geometric and volumetric quantities are usually used to define the reference area for the prediction of aerodynamic coefficients of various aquatic mammals, airships and unmanned vehicle. However, reference area does not have a unique definition, especially for a hybrid buoyant aerial vehicle having hybrid lifting hull which resembles a Steller sea lion. The term square cube root of volume is traditionally used as reference area to nondimensionalize the aerodynamic forces for conventional as well as unconventional airships. Published experimental data are usually available for complete configuration at low speed and in nondimensionalized form. So, a generic model of an aircraft's fuselage was first tested in a wind tunnel as a test case to first determine the lift force and then the influence of different choices of reference area on the lift. A hybrid lifting hull was numerically simulated for the prediction of lift as well as drag coefficients and their ratio. It was found that the volumetric term has undefined correlation with aerodynamic forces in both cases. Changes in aerodynamic coefficients are not prominent when using the wetted area as the reference area. Based on the predicted trends of aerodynamic coefficients and a deep literature survey, the projected planform area is proposed as the best option for reference area of a Steller sea lion as well as for hybrid lifting hull of a hybrid buoyant vehicle.
format	Article
author	Haque, Anwar Ul Asrar, Waqar Omar, Ashraf Ali Sulaeman, Erwin
author_facet	Haque, Anwar Ul Asrar, Waqar Omar, Ashraf Ali Sulaeman, Erwin
author_sort	Haque, Anwar Ul
title	Defining reference area for prediction of aerodynamic coefficients of a biologically inspired hybrid buoyant vehicle
title_short	Defining reference area for prediction of aerodynamic coefficients of a biologically inspired hybrid buoyant vehicle
title_full	Defining reference area for prediction of aerodynamic coefficients of a biologically inspired hybrid buoyant vehicle
title_fullStr	Defining reference area for prediction of aerodynamic coefficients of a biologically inspired hybrid buoyant vehicle
title_full_unstemmed	Defining reference area for prediction of aerodynamic coefficients of a biologically inspired hybrid buoyant vehicle
title_sort	defining reference area for prediction of aerodynamic coefficients of a biologically inspired hybrid buoyant vehicle
publisher	World Scientific Publishing Co. Pte Ltd
publishDate	2017
url	http://irep.iium.edu.my/62805/ http://irep.iium.edu.my/62805/ http://irep.iium.edu.my/62805/ http://irep.iium.edu.my/62805/1/62805_Defining%20Reference%20Area%20for%20Prediction%20of%20Aerodynamic_article.pdf http://irep.iium.edu.my/62805/2/62805_Defining%20Reference%20Area%20for%20Prediction%20of%20Aerodynamic_scopus.pdf
first_indexed	2023-09-18T21:28:59Z
last_indexed	2023-09-18T21:28:59Z
_version_	1777412383299338240

Defining reference area for prediction of aerodynamic coefficients of a biologically inspired hybrid buoyant vehicle

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