Aerothermal Analysis for Configuration Design of Swept Leading Edge Hypersonic Vehicle
Publication: Journal of Aerospace Engineering
Volume 29, Issue 6
Abstract
The aerothermal analysis of a hypersonic vehicle is of fundamental interest for designing its configuration. The convection coefficients and wall temperatures due to aerodynamic heating to critical surfaces of a hypersonic vehicle are obtained computationally. Convective heat flux to the swept-back leading edge (SBLE) surface is obtained by splitting the velocity vector along and perpendicular to the surface, and thereby appropriately using the two-dimensional (2D) stagnation region and flat plate heat fluxes together. The main purpose of this work is to propose aerothermal concepts for configuration design of a swept leading edge hypersonic vehicle. Results obtained from these computational analyses reveal the existence of temperature and drag-minimized sweepback, temperature and heat flux-variations-minimized sweepback, and most importantly, the thermally benign sharp SBLE effect. There exists an optimum sweepback angle that is different from drag and temperature-minimized sweepback. These aerothermal concepts are also potential candidates for consideration in the configuration design of hypersonic vehicles.
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Acknowledgments
The authors thank the seed grant research project No. IITM/SG/SPM/28 of Indian Institute of Technology (IIT) Mandi, Himachal Province. The authors are grateful to IIT Bombay for granting deputation (in public interest) to Prof. Shripad P. Mahulikar at IIT Mandi from June 1, 2013, to December 31, 2014, vide office Order no. Admn-I/246/2013. The authors are grateful to Dr. P. Anil Kishan, Assistant Professor, SE, IIT Mandi, India, for the administrative support.
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Information & Authors
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Published In
Journal of Aerospace Engineering
Volume 29 • Issue 6 • November 2016
Copyright
© 2016 American Society of Civil Engineers.
History
Received: Sep 19, 2015
Accepted: Apr 8, 2016
Published online: Jul 11, 2016
Published in print: Nov 1, 2016
Discussion open until: Dec 11, 2016
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