Proceedings of the 7th International Conference on Education, Management, Information and Computer Science (ICEMC 2017)

Comparative Research on the Characteristic of Aerodynamic Drag Reducing Between the Projectile with Column and Truncated-Cone Base Cavity Shape

Authors
Ye Zhihong, Lu Haibo
Corresponding Author
Ye Zhihong
Available Online June 2016.
DOI
https://doi.org/10.2991/icemc-17.2017.158How to use a DOI?
Keywords
Projectile with base cavity; Different base cavity shape; Aerodynamic drag reducing; CFD
Abstract
In order to discuss the effect of the base cavity shape on the projectile aerodynamic force, projectile with different base cavity shape, column and truncated-cone (dilation and shrinkage one, with different incline angle " ", 15ø, 10ø, 5ø, 2ø), was investigated numerically. The distribution of the flow field and the aerodynamic drag of the projectile under a supersonic flow condition were obtained. Results show that the circumfluence plays a key role to effect the aerodynamic drag force of the projectile. Compare with the traditional base cavity shape (column one), dilation truncated-cone shape, increases the aerodynamic drag of the projectile, but shrinkage truncated-cone (any incline angle) is useful to reduce the aerodynamic drag of the projectile. And there is an optimum incline angle of the shrinkage truncated-cone.
Open Access
This is an open access article distributed under the CC BY-NC license.

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Cite this article

TY  - CONF
AU  - Ye Zhihong
AU  - Lu Haibo
PY  - 2016/06
DA  - 2016/06
TI  - Comparative Research on the Characteristic of Aerodynamic Drag Reducing Between the Projectile with Column and Truncated-Cone Base Cavity Shape
BT  - Proceedings of the 7th International Conference on Education, Management, Information and Computer Science (ICEMC 2017)
PB  - Atlantis Press
SP  - 779
EP  - 782
SN  - 2352-538X
UR  - https://doi.org/10.2991/icemc-17.2017.158
DO  - https://doi.org/10.2991/icemc-17.2017.158
ID  - Zhihong2016/06
ER  -