孙哲
Professor Supervisor of Doctorate Candidates Supervisor of Master's Candidates
Gender:Male
Alma Mater:University of Southampton
Degree:Doctoral Degree
School/Department:School of Naval Architecture and Ocean Engineering
Discipline:Design and Manufacture of Ship and Ocean Structure
Business Address:Towing tank building, Room 305
Contact Information:ResearchGate Homepage: https://www.researchgate.net/profile/Zhe_Sun12
E-Mail:zsun@dlut.edu.cn
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Indexed by:期刊论文
Date of Publication:2018-12-01
Journal:APPLIED OCEAN RESEARCH
Included Journals:SCIE、Scopus
Volume:81
Page Number:76-92
ISSN No.:0141-1187
Key Words:Oblique water entry; Six-degree-of-freedom; Large eddy simulation; Vortex structure; Dynamic characteristics
Abstract:Water entry problem is an important topic, and the physical understanding of the mechanism of the cavity dynamics and vortex evolution have still not been clear up to now. In the present study, the complicated unsteady characteristics for the oblique water entry problem of a cylinder were investigated both numerically and experimentally. In the numerical study, a three-dimensional simulation with a six-degree-of-freedom model was carried out, where the large eddy simulation (LES) model and the volume of fluid (VOF) technique were used for turbulence computation and air-liquid interface tracking, respectively. In order to provide the validation data for the numerical calculation, the corresponding experiment was carried out, in which a high-speed camera was used to record the cavity evolution. The cavity evolution mechanism and flow pattern at a low Froude number are analyzed and it is found that the multi-scale vortex structures around the cylinder can be successfully captured by LES method. Moreover, a numerical parametric study is conducted on the effects of water entry angle on the dynamic characteristics numerically.
Dr Zhe SUN is an associate Professor in School of Naval Architecrue and Ocean Engineering of Dalian University of Technology. He obtained his first and Master degree from Harbin Engineering University （in China）in 2009 and 2012. In 2016, he graduated from Univerisity of Southampton (in UK) with PhD degree in Computational Mechanics . He joined Dalian University of Technoloy in 2017 as Lecturer. He is now teaching the course of Enviromental Mechanics for Ocean Engineering for undergraduate students.
His main research insterests include Computational Fluid Dynamcis, Particle Meshless Method and Wave-Structure Interaction. He has published more than 20 peer-reviewed journal papers spanning from renowned Ocean Engineering and Computational Engineering journals such as Ocean Engineering, Marine Structures, Applied Ocean Research and Journal of Fluids and Structures etc.
