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Influence of nose radius of blunt cones on drag in supersonic and hypersonic flows

Publisher : IOP Conference Series: Materials Science and Engineering

Campus : Bengaluru

School : School of Engineering

Department : Mechanical

Year : 2017

Abstract : pThe objects moving at high speeds encounter forces which tend to decelerate the objects. This resistance in the medium is termed as drag which is one of the major concerns while designing high speed aircrafts. Another key factor which influences the design is the heat transfer. The main challenge faced by aerospace industries is to design the shape of the flying object that travels at high speeds with optimum values of heat generation and drag. This study deals with computational analysis of sharp and blunt cones with varying cone angles and nose radii. The effect of nose radius on the drag is studied at supersonic and hypersonic flows and at various angles of attack. It is observed that as the nose radius is increased, the heat transfer reduces amp; the drag increases and vice-versa. Looking at the results, the optimum value of nose radius can be chosen depending on the need of the problem./p

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