Find in Library

Some typical living creatures with a non-smooth surface in nature are introduced. The law of the fact that an appropriate micro-structure surface can transform the turbulent structure of near-wall region is briefly stated. The research status of the type of micro-structure surface, the drag reduction of micro-structure surface, the mechanism of drag reduction of micro-structure surface and its application so far are commented. The extended types of grooves are proposed, and it is suggested that the current research on drag reduction should be extended for structures with complex shapes. The analysis indicates that the types of bionic micro-structure surfaces have great effect on drag reduction, the mechanical research and aerodynamic drag reduction are focal points of the bionic micro-structure surface drag reduction technology, which can further improve the efficiency of energy conservation and reduce consumption, and has a great prospect in engineering fields such as aircraft, high-speed trains, cars, etc.