鲨鱼盾鳞肋条结构的减阻仿生研究进展  

Drag-Reduction Bionic Research on Riblet Surfaces of Shark Skin

作　　者：刘博[1] 姜鹏[1] 李旭朝[2] 桂泰江[2] 田黎[3] 秦松[1] 

机构地区：[1]中国科学院海洋研究所,青岛266071 [2]海洋化工研究院,青岛266071 [3]青岛科技大学化工学院,青岛266042

出　　处：《材料导报》2008年第7期14-17,21,共5页Materials Reports

基　　金：973前期研究专项(2005CCA00800)

摘　　要：鲨鱼体表覆有一层细小的盾鳞(Placoid scale),盾鳞上的脊状突起称为肋条(Riblet),肋条之间构成具圆弧底的沟槽。这种沟槽形态的鲨鱼盾鳞肋条结构(Riblet surfaces)具有良好的减阻作用。从盾鳞的结构、形态和功能出发,详细介绍了鲨鱼盾鳞肋条结构减阻相关的流体动力学机理及其仿生材料模型的设计与测试方法,概括了目前肋条结构仿生材料的减阻应用情况,并展望了其未来的发展方向。Fast-swimming sharks have small placoid scales on their skin, of which the rihlet surfaces （grooved surfaces） can improve swimming performance of these relatively giant fishes. Shark skin-imitated products have already met needs in several areas. Investigation into the drag-reduction mechanism of riblet surfaces makes placoid scale a per- fect object to biomaterial research. In this review placoid scale% structure, shapes and the drag-reduction function of its riblet surfaces are introduced. The development of related hydrokinetic mechanism, model design, model test and bionic applications are presented in detail. The future development in bionic application of riblet surfaces is also discussed.

关 键 词：仿生材料 鲨鱼皮 盾鳞 肋条结构 沟槽 减阻 

分 类 号：TB39[一般工业技术—材料科学与工程] P642.23[天文地球—工程地质学]