AN EFFICIENT SWIMMING MACHINE

被引：699

作者：

TRIANTAFYLLOU, MS

TRIANTAFYLLOU, GS

机构：

[1] MIT,OCEAN ENGN TESTING TANK FACIL,CAMBRIDGE,MA 02139

[2] CUNY CITY COLL,BENJAMIN LEVICH INST PHYSICOCHEM HYDRODYNAM,NEW YORK,NY 10031

来源：

SCIENTIFIC AMERICAN | 1995年 / 272卷 / 03期

关键词：

D O I：

10.1038/scientificamerican0395-64

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

This article describes research into the fluid mechanics of fish propulsion, with the ultimate aim of applying the results to ship and submarine propulsion. Simple foils that approximated the swish of a fish tail were constructed in the laboratory. Experiments revealed that the jet vortices in the wake of the flow play a central role in the generation of thrust. By analysing data from the flapping foils, it was found that thrust-induced vortices from optimally when the Strouhal number lay between 0.25 and 0.35. It was found that many fish swing their tails within this optimal range also. From these results, an artificial fish, known as RoboTuna, was constructed. -S.E.Brown

引用

页码：64 / 70

页数：7

共 5 条

[1] ACTIVE VORTICITY CONTROL IN A SHEAR-FLOW USING A FLAPPING FOIL [J].