TY - JOUR
T1 - Numerical and experimental study of cone-headed projectile entering water vertically based on MMALE method
AU - Cao, Miaomiao
AU - Shao, Zhiyu
AU - Wu, Siyu
AU - Dong, Chaochao
AU - Yang, Xiaotian
N1 - Publisher Copyright:
© 2021 Society of Naval Architects of Korea
PY - 2021/1
Y1 - 2021/1
N2 - The water entry behaviors of projectiles with different cone-headed angles were studied numerically, experimentally and theoretically, mainly focusing on the hydrodynamic impact in the initial stage. Based on MMALE algorithm, it was proposed a formula of impact deceleration, which relied on the initial entry velocity and cone-headed angle. Meanwhile, in order to verify the validity of the simulation model, experiments using accelerometer and high-speed camera were carried out, and their results were in a good agreement with simulation results. Also, theoretical calculation results of cavity diameter were compared with experiments and simulation results. It was observed that the simulation method had a good reliability, which would make forecast on impact deceleration in an engineering project.
AB - The water entry behaviors of projectiles with different cone-headed angles were studied numerically, experimentally and theoretically, mainly focusing on the hydrodynamic impact in the initial stage. Based on MMALE algorithm, it was proposed a formula of impact deceleration, which relied on the initial entry velocity and cone-headed angle. Meanwhile, in order to verify the validity of the simulation model, experiments using accelerometer and high-speed camera were carried out, and their results were in a good agreement with simulation results. Also, theoretical calculation results of cavity diameter were compared with experiments and simulation results. It was observed that the simulation method had a good reliability, which would make forecast on impact deceleration in an engineering project.
KW - Cavity
KW - Cone-headed projectile
KW - Impact deceleration
KW - MMALE
KW - Numerical simulation
KW - Water entry
UR - http://www.scopus.com/inward/record.url?scp=85119927588&partnerID=8YFLogxK
U2 - 10.1016/j.ijnaoe.2021.11.001
DO - 10.1016/j.ijnaoe.2021.11.001
M3 - Article
AN - SCOPUS:85119927588
SN - 2092-6782
VL - 13
SP - 877
EP - 888
JO - International Journal of Naval Architecture and Ocean Engineering
JF - International Journal of Naval Architecture and Ocean Engineering
ER -