高速跨介质入水多相流动与流固耦合特性研究综述

Review of multiphase flow and fluid-structure interaction of high-speed water entry

高速跨介质入水问题广泛存在于海洋工程、航空航天等领域,入水多相流动与流固耦合作用机理是该领域的研究热点,对于跨介质航行器的载荷预报、弹道稳定性评估、结构强度校核以及安全性设计等具有重要意义。本文围绕高速跨介质入水所涉及的基础关键力学问题,重点论述了高速跨介质多相流动与空泡演化、冲击载荷与降载方法、运动稳定性与流固耦合响应、流固耦合数值研究方法等方面的研究现状,并针对目前仍存在的问题提出了建议,旨在为高速跨介质入水的相关研究与设计等提供参考。

The problem of high-speed transmedium water entry widely exists in the fields such as ocean engineering,aerospace,and more.The mechanism of multiphase flow and fluid structure interaction in highspeed cross medium water entry is a research hotspot in this field,which is of great significance for load prediction,ballistic stability evaluation,structural strength verification,and safety design of transmedium weapons and spacecraft.This paper focuses on the fundamental key mechanical issues involved in high-speed transmedium water entry,focusing on the research status of multiphase flow and cavity evolution,impact load and load reduction methods,motion stability and fluid structure interaction response,and numerical methods of fluid structure interaction.Suggestions and prospects are proposed for the existing problems,aiming to provide fundamental references for related research and design of high-speed transmedium water entry.