A Caltech Library Service

Pressure-driven wave propagation in mm-scale channels

Austin, Joanna (2005) Pressure-driven wave propagation in mm-scale channels. In: 58th Annual Meeting of the Division of Fluid Dynamics. American Physical Society .

PDF - Published Version
See Usage Policy.


Use this Persistent URL to link to this item:


Miniaturized analysis systems, which may potentially revolutionize detection of air-borne biological or chemical agents through increased portability and real time response, also present exciting fundamental challenges. Development of integrated total analysis systems will depend on optimizing the interaction of multiple components such as valves, injectors, pumps, and channels. In pressure-driven systems, such components may produce finite amplitude waves and wave attenuation may then be a key design factor in optimizing both devices that operate on steady-state assumptions and devices where unsteadiness is cultivated, for example mixers. A fundamental experimental investigation of wave propagation as a function of the channel size was performed. A shock wave is transmitted into mm-scale channels to achieve a well-characterized initial condition. Wave attenuation and structure information is obtained from time-of-arrival data and pressure histories along the channel. Experimental results are compared with models developed for the analogous flow regime of wave propagation through macroscale channels in low pressure environments.

Item Type:Book Section
Related URLs:
URLURL TypeDescription
Additional Information:© 2005 American Physical Society. Date submitted: 27 Jul 2005. Abstract ID: BAPS.2005.DFD.HM.3
Record Number:CaltechAUTHORS:20141007-135422657
Persistent URL:
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:50240
Deposited By: Tony Diaz
Deposited On:07 Oct 2014 23:27
Last Modified:03 Oct 2019 07:21

Repository Staff Only: item control page