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Numerical investigation of aeroheating characteristics of spiked blunt bodies at Mach six flight conditions

Published online by Cambridge University Press:  27 January 2016

M. Y. M. Ahmed  and
N. Qin
M. Y. M. Ahmed
Affiliation:
Aerospace Department, Military Technical College, Cairo, Egypt
N. Qin*
Affiliation:
Aerospace Department, Military Technical College, Cairo, Egypt
*
[email protected]
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Abstract

Adding a small aerodisk at the tip of the spike was proved to improve the spike’s performance in reducing the drag. If designed properly, the aerodisk spike can offer better performance in drag reduction in comparison with the pointed sharp-nosed spike. However, the impact of the aerodisk on the aeroheating reduction capabilities of the spike was not investigated in detail before. In the present work, a numerical investigation of the aerothermodynamic characteristics of spiked blunt bodies at Mach 6 flight conditions is conducted. It was found that, adding an aerodisk degrades the performance of the spike in reducing the aeroheating level. Nonetheless, the latter remains below that of the unspiked body.

Type
Research Article
Information
The Aeronautical Journal , Volume 115 , Issue 1168 , June 2011 , pp. 377 - 386
Copyright
Copyright © Royal Aeronautical Society 2011 

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