La Houille Blanche
Number 4, Août 2003
|Page(s)||43 - 48|
|Published online||01 July 2009|
Etude numérique de microdiodes de type convergent/divergent
Numerical study of convergent/divergent microdiodes
Technical University of Budapest - Department of Aircraft and Ships
2 Laboratoire de Génie Mécanique de Toulouse - Institut National des Sciences Appliquées de Toulouse
Fluidic microdiodes are devices with no mobile parts, which can be used to replace check valves in micropumps in order to increase their reliability. In this paper, the influence of the divergence angle on the efficiency of convergent/divergent diodes with constant depth is studied. Our numerical model built up with the CFD code Fluent is first validated thanks to experimental results available in the literature. The numerical study shows then that the preferential direction of the flow in the diode is dependant both on the divergence angle and on the pressure drop imposed through the device. The same parametrical study is done on convergent/divergent pyramid-shaped diodes. Behaviour differences are outlined and conclusions about the optimisation of such microdiodes used in micropumps are deducted from these results.
© Société Hydrotechnique de France, 2003
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.