Geometric optimisation of a micromachine with a spiral tail immersed in viscous medium

被引：6

作者：

Nasseri, S ^{[1
]}

PhanThien, N ^{[1
]}

机构：

[1] UNIV SYDNEY,DEPT MECH & MECHATRON ENGN,SYDNEY,NSW 2006,AUSTRALIA

来源：

COMPUTATIONAL MECHANICS | 1997年 / 20卷 / 03期

关键词：

D O I：

10.1007/s004660050247

中图分类号：

O1 [数学];

学科分类号：

0701 ; 070101 ;

摘要：

A model of micromachine with a spiral tail moving in a highly viscous fluid has been simulated using the Boundary Element Method. The trajectory of this micromachine is a straight line and it swims with a velocity close to that of a microorganism with a helical tail. An optimisation process has been carried out in order to find the optimal parameters to obtain the highest translational velocity. The optimum capsule-shaped head of this micromachine has an aspect ratio of about 0.5; the length of the tail is about 8 times the radius of the head, about 4.2 times of its width, and consists of 1.5 wavelengths. The dimensional proportions obtained here are in excellent agreement with previous studies on the motion of microorganisms with helical tails.

引用

页码：267 / 271

页数：5

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