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.
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Abbreviations
- C d :
-
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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Kushary, A., Chopra, A., Sinha, J., Undavalli, V. (2018). Computational Investigation of the Effect of Various Spike Geometries Mounted on Supersonic Vehicles. In: Singh, S., Raj, P., Tambe, S. (eds) Proceedings of the International Conference on Modern Research in Aerospace Engineering. Lecture Notes in Mechanical Engineering. Springer, Singapore. https://doi.org/10.1007/978-981-10-5849-3_16
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DOI: https://doi.org/10.1007/978-981-10-5849-3_16
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