关键词: 蛇怪蜥蜴, 仿生推进装置, 数值计算, 转速, 试验

Abstract:

A bionic propulsion unit was developed herein by simulating the moving status of a basilisk lizard running on the water. Based on the theoretical analyses, we focused on the change rules of propulsive performance under different rotating speeds. Comparison and analysis of the results obtained by using a two-dimensional computational fluid dynamics method for propulsion unit model were presented and emphasized. At the same time, a water entry test was finished to verify the simulation analysis. The simulation and test results indicate that the advance of bionic propulsion unit increases considerably with the rise of the rotational speeds, for increasing speed there exists a rotating speed range of the propulsion unit; once the rotating speed out of the scope, increasing underwater depth of bionic propulsion is an efficient method to improve the speed.

Key words: basilisk lizard, biomimetic propulsion, numerical calculation, rotating speed, test