基于SPH/FEM方法的浅水冲击喷溅及其抑制结构研究

Xuan Qi Ren, Fei Xu, Xian Peng Zhang, Yang Yang

科研成果: 期刊稿件文章同行评审

5 引用 (Scopus)

摘要

The impact of an object dropping into shallow water would cause a structural response and severe spray.Previous research mainly focused on the response of the object caused by the water,while the works related to the water spray and its suppression structures are very inadequate.In this paper,the SPH/FEM coupling method is used to study the water spray generated by shallow water impact.Firstly,the water spray caused by rigid rectangular structure is simulated,through the comparison between the results and the previous experiments the spray is divided into three parts,i.e.the initial spray,the secondary spray and the bottom jet spray.Then the formation mechanisms of each part are investigated respectively,which indicate that the secondary spray is mainly caused by the interaction between the water squeezing of the structure and energy transforming of the bottom jet.The influence of the water depth on the spray is analyzed,which shows that the secondary spray increases with the decrease of water depth.Secondly,the mechanism of the water spray suppression structure is studied,which illustrates that the arched chine could suppress the initial spray,while it could not reduce the secondary spray effectively.Then a new type of chine with groove and water resistant edge is proposed,which would have a better effect,especially on the secondary spray.

投稿的翻译标题Research on the water spray generated by shallow water impact and its suppression structure by using the SPH/FEM method
源语言繁体中文
页(从-至)769-776
页数8
期刊Jisuan Lixue Xuebao/Chinese Journal of Computational Mechanics
35
6
DOI
出版状态已出版 - 1 12月 2018

关键词

  • Chine
  • Shallow water
  • SPH/FEM coupling method
  • Suppression structure
  • Water spray

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