Proceedings of the International Conference on Management, Computer and Education Informatization

Research on the Effect of the Base Cavity with Different Length Upon the Projectile

Authors
Haibo Lu, Xianrui Shi, Shiying Tian, Quan Gan
Corresponding Author
Haibo Lu
Available Online June 2015.
DOI
https://doi.org/10.2991/mcei-15.2015.6How to use a DOI?
Keywords
Projectile with base cavity; Terminal length; Flow field; Aerodynamic drag; Numerical simulation
Abstract
Base cavity configuration is a useful choice to reduce the base drag of projectiles. This paper interests in the influence of the cavity length on the projectile with base cavity. Base cavity with different length, including terminal one, were investigated numerically. The flow field parameters (Mach number, stream line, temperature and pressure), aerodynamic drag coefficient of the projectile with different length base cavity under a supersonic flow condition were obtained. Numerical results show that the recirculation region which is formed inside the base cavity plays a pivotal role for the reduction of the drag. With the increasing of the cavity length, the aerodynamic drag of the projectile reducing monotonously, even the length increases into a terminal one. If others influencing factors (such as charge mass, structural strength, etc.) were considered, a deeper base cavity is benefit to reduce the aerodynamic drag of the projectile and increase the range of fire.
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Proceedings
International Conference on Management, Computer and Education Informatization
Part of series
Advances in Computer Science Research
Publication Date
June 2015
ISBN
978-94-6252-118-6
ISSN
2352-538X
DOI
https://doi.org/10.2991/mcei-15.2015.6How to use a DOI?
Open Access
This is an open access article distributed under the CC BY-NC license.

Cite this article

TY  - CONF
AU  - Haibo Lu
AU  - Xianrui Shi
AU  - Shiying Tian
AU  - Quan Gan
PY  - 2015/06
DA  - 2015/06
TI  - Research on the Effect of the Base Cavity with Different Length Upon the Projectile
BT  - International Conference on Management, Computer and Education Informatization
PB  - Atlantis Press
SN  - 2352-538X
UR  - https://doi.org/10.2991/mcei-15.2015.6
DO  - https://doi.org/10.2991/mcei-15.2015.6
ID  - Lu2015/06
ER  -