报 告 人：Prof. Guoxiong WU (University College London)
时 间：2014年3月28日(周五) 15：00～17：00
地 点：中科院力学研究所 会议中心206会议室
报告人简介：G.X. Wu obtained his Bsc in naval architecture and ocean engineering at Shanghai Jiao Tong University in 1982, followed by PhD in the same area at University College London (UCL). After some years as a researcher at UCL, he became a lecturer in 1992, a Reader in 1997 and a Professor in 2000, the post which he has held ever since. He is currently the chair of the joint research centre on deep water challenges and hydrodynamics, supported by the Lloyds Register Foundation, involving UCL, Shanghai Jiao Tong University and Harbin Engineering University. His personal research covers a wide range of hydrodynamic problems and has published around 100 papers on many highly respected journals, including around 10 both in Journal of Fluid Mechanics and in the Proceedings of Royal Society. He was among the first of group of people who were selected by the National Thousand-Talents programme in 2008.
报告摘要： Fluid/structure impact occurs in many engineering applications. It is usually over a very short period of time, during which physical parameters change rapidly and very large pressure can be created. The present work is based on the velocity potential theory together with the boundary element method. The discussions mainly focus on the following problems: (1) vertical water entry of a single and twin wedges, (2) oblique entry of an asymmetric wedge, (3) vertical water entry of a wedge in free fall motion, (4) oblique entry of a wedge in free fall motion in three degrees of freedom, (5) water entry of an elastic wedge, (6) liquid column or droplet impact on a wall, (7) liquid block impact on a solid wedge (8) collision of a liquid wedge and a solid wedge, (9) jet impact on a solid wall, (10) collision of two liquid wedges, (11) body gliding along a free surface, (12) vertical water entry of a cone through free fall motion, (13) oblique entry of a cone, (14) oblique entry of non-axisymmetric bodies at varying speed, (15) oblique impact of a water cone on a solid wall, (16) oblique water entry of an expanding paraboloid. Detailed results are provided for all these cases. Their physical implications and applications will be discussed.
报告联系人： 前沿科学处 陶彩军(email@example.com; 010-82544393)