Experimental and numerical studies on the flow characteristics of slanted entry cd nozzle in supersonic streams

Abstract

Flow characteristics of straight and slanted entry CD nozzle with a newlinedesign Mach number of 294 exposed to a Mach 2 free jet has been newlineinvestigated The aim of this investigation is to find whether a nozzle exposed newlineto a supersonic free jet can choke and deliver supersonic flow at its exit newlineinspite of the presence of a detached shock standing ahead of its inlet Nozzles newlinewith straight entry inlet face normal to the flow and with slanted entry with newlineslanting angles 15 30 45 and 57 were studied The free jet expansion newlinelevel was also varied to cover a range from highly overexpanded to newlinemoderately underexpanded states The experimental results of this study newlinereveals that the nozzle placed in a Mach 2 free jet can choke and deliver newlinesupersonic flow at its exit newline newline