Numerical Investigation of Supersonic Flow over Aero-Disk Spiked Ballistic Bodies

Sundarraj, V and Porwal, L and Raj, N and Sundarraj, K and Kulkarni, PS (2020) Numerical Investigation of Supersonic Flow over Aero-Disk Spiked Ballistic Bodies. In: 22nd Australasian Fluid Mechanics Conference, 7-10 December 2020, Brisbane.

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Abstract

Computational Fluid Dynamics (CFD) analysis has been carried out on ballistic bodies with a hemispherical aero-disk spike. This research involves the presence and absence of a blunt tip to understand the flow behavior on these bodies under two scenarios namely zero-degree angle of attack and at supersonic speed (Mach 2.0). The aerodynamic drag and thermal heat transfer effects of these spikes on three different blunt-body configurations have been studied. The flow patterns on these configurations were three-dimensionally visualized through Schlieren images. It was observed that the usage of an aero-disk spike reduced the aerodynamic drag by 50-60. Additionally, peak surface heat flux reduced significantly. Similar drag reduction trends were noticed with the usage of the blunt tip version as well, but with further reduction in peak surface heat flux. In conclusion, the usage of blunt tip aero-disk spike on the configuration labeled 3221 has significantly improved the drag and surface heat flux effects. © 2020 22nd Australasian Fluid Mechanics Conference, AFMC 2020. All rights reserved.

Item Type:	Conference Paper
Publication:	22nd Australasian Fluid Mechanics Conference, AFMC 2020
Publisher:	Australasian Fluid Mechanics Society
Additional Information:	The copyright for this article belongs to the Australasian Fluid Mechanics Society.
Keywords:	Aerodynamic drag; Angle of attack; Ballistics; Heat flux; Heat transfer, Aerospike; Ballistic bodies; Blunt bodies; Blunt tip; Flow behaviours; Fluid dynamic analysis; Fluid-dynamic analysis; Numerical investigations; Supersonic; Surface heat fluxes, Computational fluid dynamics
Department/Centre:	Division of Mechanical Sciences > Aerospace Engineering(Formerly Aeronautical Engineering)
Date Deposited:	28 Feb 2024 09:46
Last Modified:	28 Feb 2024 09:46
URI:	https://eprints.iisc.ac.in/id/eprint/83576

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