Civil and Hydraulic Engineering Frontier Experiment Learning Logs project 1 dynamics,drag-reduction technologies,and coastal engineering.Professor Perlin is well known in USA for his talented contributions in marine engineering Most of his research has published in the journals like Journal of Fluid Mechanics,Annual Review of Fluid Mechanics,Physics of Fluids,etc. 7.Support (1)National Natural Science Foundation of China(11172058),"Study on the nonlinearity of ocean waves based on the continuous wavelet transform", 2012.1-2016.12. (2 )National Natural Science Foundation of China(51009024). "Researches on the action of surf beat on the waterway and harbors", 2011.1-2013.12. (3)National Basic Research Program of China(2011CB013701),"The characteristics and simulating method of the extreme conditions in the South China Sea",2011.8-2016.8. Wave breaking in various types Multi-directional wave basin 03■