Influence of base cavity on base pressure at subsonic and supersonic Mach numbers

Murugan, J N and Chutkey, Kiran and Verma, SB (2019) Influence of base cavity on base pressure at subsonic and supersonic Mach numbers. In: AIP Conference Proceedings.

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Official URL: https://aip.scitation.org/doi/10.1063/1.5120195

Abstract

An experimental study has been conducted to understand the effectiveness of passive device over base pressure region by modifying the cavity lip radius of an axisymmetric afterbody. The study has been done at both subsonic and supersonic Mach numbers. The effectiveness of the base cavity lip geometry modifications is studied using unsteady base pressure measurements over the base region of the axisymmetric afterbody. Results show that the variation of the time-averaged pressure is approximately constant in the radial direction for both blunt base and rounded off base configurations at all Mach numbers. The normalized rms pressure fluctuation is approximately constant in the radial direction for both cases.

Item Type: Conference or Workshop Item (Paper)
Subjects: ENGINEERING > Fluid Mechanics and Thermodynamics
ENGINEERING > Mechanical Engineering
Depositing User: Mrs SK Pratibha
Date Deposited: 23 Nov 2021 11:39
Last Modified: 23 Nov 2021 11:39
URI: http://nal-ir.nal.res.in/id/eprint/13375

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