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Study of Aerodynamic and Aerothermal Characteristics of Blunted Power Law Bodies

Publication Type : Conference Paper

Publisher : springer

Source : Lecture Notes in Mechanical Engineering

Url :

Campus : Bengaluru

School : School of Engineering

Year : 2022

Abstract : Power law is mainly known for its relationship between two variables, as a variable change in one quantity results in a proportional change to the other variable. The power law bodies are designed based on the power law equation y α xn, where n is known as the exponent of power law, such that as n value increases the body gets aerodynamically sharp. It is used for designing the waveriders, which protect the pressure spillage by help of shockwave, hence extra lift and reduced drag. In this study, power law body designs are done for n = 0.25, 0.5, 0.75, 0.8, 0.9, and 1. The numerical simulation is done in Ansys Fluent. The aerothermal and aerothermodynamics study of power law bodies are done for different Mach numbers of 6, 7, 8, 9, and 10. Bodies are blunted with radius of 0.01 cm, 0.02 cm, 0.0505 cm, and 0.074 cm. The results are compared with blunted cone. Shock standoff distance is also measured, which is used for studying waverider. It is concluded that blunting of power law bodies is better than blunted cone leading-edge bodies, the heat transfer rate for blunted leading edge decreased to the level of n< =0.5 power law bodies which are blunt in nature and for n = 0.9 and n = 0.75, blunted leading edge has smallest shock standoff distance.

Cite this Research Publication : Sanjay Krishna M.S & Kotebavi, Vinod. “Study of Aerodynamic and Aerothermal Characteristics of Blunted Power Law Bodies” Lecture Notes in Mechanical Engineering, Pages 717 – 725, 2022

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