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Computational Investigation of the Effect of Various Spike Geometries Mounted on Supersonic Vehicles

  • Aishwarya Kushary
  • Anjali Chopra
  • Jayanta Sinha
  • Vamsikrishna Undavalli
Conference paper
Part of the Lecture Notes in Mechanical Engineering book series (LNME)

Abstract

Numerical analysis has been performed on an axisymmetric model with a spike at its tip. Steady simulation has been performed at supersonic speed of Mach 2. At high Mach regimes, aeroheating and high values of drag have always been a major concern for the aerospace industry. These two parameters have been subjected to decades of research, and as an outcome, design optimization has proven to be one of the most effective methods in reducing drag and heating levels. Revolving around the same issue, this paper analyzes various spike geometries on a blunt body and the drag coefficient values have shown the reduction of about 40–50% in the aerodynamic drag.

Keywords

Spike Supersonic flow Recirculation Reattachment Oblique shocks Bow shock 

Nomenclature

Cd

Coefficient of drag

l

Length

D

Diameter

l/D

Ratio of spike length and fore-body diameter

s/D

Ratio of axial length and fore-body diameter

B

Blunt body

S1-7.5

Spike of diameter 1″ @ 7.5° semi-cone angle

S2S’1-7.5

Spike 1 of diameter 2″ and Spike 2 of diameter 1″ @ 7.5° semi-cone angle

S3S’3-30

Spike 1 of diameter 3″ and Spike 2 of diameter 3″ @ 30° semi-cone angle

S6S’3-30

Spike 1 of diameter 6″ and Spike 2 of diameter 3″ @ 30° semi-cone angle

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Copyright information

© Springer Nature Singapore Pte Ltd. 2018

Authors and Affiliations

  • Aishwarya Kushary
    • 1
  • Anjali Chopra
    • 1
  • Jayanta Sinha
    • 1
  • Vamsikrishna Undavalli
    • 1
  1. 1.Amity Institute of Aerospace Engineering, Amity UniversityNoidaIndia

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