Numerical Approach Investigation of Projectile with Boattail

DOI

10.2991/meici-18.2018.140How to use a DOI?

Keywords

Boattail; Projectile with base cavity; Aerodynamic drag; Flow field; Numerical simulation

Abstract

The paper focuses on the influence of boattail on the flow field and aerodynamic force of the projectile. With the same base cavity, projectiles without and with boattail (boattail angle, 2°) are simulated numerically. The flow field parameters and the aerodynamic drag coefficient of models were obtained. The numerical results show that there is one more expansion wave is formed which is caused by the boattail configuration. This expansion wave weakens the one at the bottom of the projectile and decreases the base pressure of the projectile. The aerodynamic drag is decreased too.

Copyright

© 2018, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Haibo Lu
AU  - Zhihong Ye
AU  - Deyou Xu
PY  - 2018/12
DA  - 2018/12
TI  - Numerical Approach Investigation of Projectile with Boattail
BT  - Proceedings of the 2018 8th International Conference on Management, Education and Information (MEICI 2018)
PB  - Atlantis Press
SP  - 708
EP  - 711
SN  - 1951-6851
UR  - https://doi.org/10.2991/meici-18.2018.140
DO  - 10.2991/meici-18.2018.140
ID  - Lu2018/12
ER  -