Nanotech 2001 Vol. 1
Nanotech 2001 Vol. 1
Technical Proceedings of the 2001 International Conference on Modeling and Simulation of Microsystems

Micro and Bio Fluidics Chapter 6

Insects Separate Diffusing Particles in Parallel

Authors: J.V. Lawry

Affilation: California Academy of Sciences, United States

Pages: 254 - 257

Keywords: hemolymph, networks, miniaturization, dynamical systems, topology

Abstract:
The circulation of insects and other invertebrates transfers heat, mass, and momentum within micro-fluids through phase interfaces of complex geometry at size ranges important for developing compact energy and chemical systems. Pump size and vascular resistance limit tubular transport of vertebrate systems shrunk to insect volumes. Within bodies <3-4 mm long, flies, beetles and bees disperse and separate diffusing substances in a large body cavity. Body movements and an open tubular pump stir fluid over organs that absorb and contribute substances in parallel. This robust exponential network is most efficient at the smallest dimensions when a 3D volume of blood converts to a 2D surface, increasing transmission probability from 0.34 to 1.

Insects Separate Diffusing Particles in Parallel

ISBN: 0-9708275-0-4
Pages: 638