Influence of active cowl deflection during buzz cycle of an axisymmetric supersonic intake

• DOI: 10.1017/aer.2025.37
• Publication Date: 2025-04-28T08:20:59Z
• Authors: S. Rao; P. Kumar; L. Srinivasa Rao; S. Das
• Keywords: Marketing buzz

Abstract Supersonic intakes, under adverse operating conditions, can have unwanted oscillations of shock system internal and external to its duct, known as intake buzz. These buzz instabilities degrade performance by causing violent pressure fluctuations, reducing mass flow, decreasing thrust, leading combustion well. This study examines the onset this in an axisymmetric with various throttles investigates effects dynamic angular deflection a portion cowl on resulting phenomena. Computations experiments were conducted at Mach number 2.0 obtain investigate behaviour throttle conditions. Dailey-type is observed be predominant for present intake, it has been also quantified that time period higher throttling ratios not constant. A technique dynamically varying tip about pivot point was attempted here eliminate during well complete cycle. It found current useful seizing expulsion from hence restricting unstart further adversities.