摘要
形体减阻在气体、流体和固体系统中有着良好的应用前景。对 3种介质中运动物体的减阻类型与减阻机理进行归纳和分析 ,将形体减阻分为几何非光滑与柔性非光滑两种形式。从能量角度 ,通过建立界面能量平衡方程 ,将 3种介质中减阻的实质统一为系统能量的转移量与转移速率。从仿生学角度 ,对一些人造物与自然生物的减阻效果做了对比分析 ,对刚性与柔性结构单元组合形式进行了分类归纳并举例 。
Shape drag reduction technology has opened up a vast range of applied prospects in gas, fluid and solid structure design of engineering. The types and mechanisms of shape drag reduction were classified and analyzed respectively. A shape drag reduction consists of geometrical unsmoothed surfaces and compliant unsmoothed surfaces. The essence of shape drag reduction at different media lies in the energy transforming volume and transforming velocity in term of the bionics views. Some comparisons of the effects of shape drag reduction between creatures and man made things flexible unit combination were showed. The results show that at the same conditions, the resistance of flexible sample posses is smaller than that of the harder one. Some birds or insects have a better fly ability than that of man made flying machines whose properties to be improved by simulating animals' features.
出处
《农业机械学报》
EI
CAS
CSCD
北大核心
2003年第1期130-133,共4页
Transactions of the Chinese Society for Agricultural Machinery
基金
国家自然科学基金重点资助项目 (项目编号 :5 983 5 2 0 0 )
吉林省高等学校科研资助项目 (项目编号 :吉教合字 [0 1]第 5 3号 )
关键词
工程仿生学
减阻
形体
机理
仿生
Engineering bionics, Drag reduction, Review, Shape, Mechanism, Bionics
