【作者】 禹营； 汪家道； 陈大融；

【Author】 YU Ying~1 WANG Jia-dao~1 CHEN Da-rong~1 (1.State Key Laboratory of Tribology,Tsinghna University,Beijing 100084,China

【机构】 清华大学摩擦学国家重点实验室；

【摘要】 阻力是影响水下航行体速度的主要因素,多种减阻方法已经得到了广泛的应用,目前大多采用单一的减阻方式,但有一定的局限性．超疏水表面减阻是利用形貌和低表面能涂层相结合的方法来降低表面的阻力,它不仅实现了水下航行体的高速下减阻,也克服了单一形貌和单一涂层方法减阻效率低的缺点．表面形貌的结构、尺寸、方向等以及低表面能的涂层都对表面的疏水效果、阻力大小有很大的影响．更多还原

【Abstract】 The main factor of influence the under water navigator velocity is resistance.Many methods of drag reduction have been become widely available,but because most of the methods adopted now are single fash- ion,it has definite localization.The drag reduction of ultra hydrophobic surface utilizes both topography and low surface energy coating.This method make under water navigator improve velocity and overcome the short- coming of low drag reduction efficiency of single topography.The degree of ultra hydrophobic and the magni- tude of resistance were decided by the structure,dimension and direction of topography and low surface energy coating.更多还原