Recent developments on the water entry impact of wedges and projectiles

ABSTRACT

In the scientific community, water entry impact study has been remained focus by various authors across the globe in past decades. This paper reviews different analytical, experimental and numerical techniques for water entry impact problem. In this article, water entry problems have been broadly categorised into two main groups i.e. water entry of wedges (focusing on hull slamming loads only) and water entry of projectiles (focusing on impact loads, trajectory calculations and cavity dynamics). The first part of the review commences with theoretical studies in the realm of water entry of wedges then overviews key accomplishments in experimental and numerical techniques. The later section discusses the theoretical, experimental and numerical work carried out on water impact of projectiles starting from background then reviews some major research studies from 2000 to most recent advances. In the end, review is summarised and some recommendations are presented for future work.

KEYWORDS:

• Water entry
• cavity dynamics
• hydrodynamic impact load
• slamming
• key accomplishments

Acknowledgements

We gratefully acknowledge the financial support for this work from the National Natural Science Foundation of China (Grant Nos. 51709229 and 51879220); Natural Science Basic Research Plan in Shaanxi Province of China (Grant No. 2018JQ5092); and Fundamental Research Funds for the Central Universities (Grant No. 3102019JC006).

Disclosure statement

No potential conflict of interest was reported by the author(s).

Additional information

Funding

We gratefully acknowledge the financial support for this work from the National Natural Science Foundation of China [grant numbers 51709229, 51879220]; Natural Science Foundation of Shaanxi Province [Program No. 2018JQ5092]; and Fundamental Research Funds for the Central Universities [grant number 3102019JC006].