The microfluidic devices are today used in many engineering applications. However, despite much progress in this field, the fundamental understanding of fluid flow and heat transfer in microscale is still not satisfactory. In this study, the rarefaction effects on the pressure drop for an incompressible flow through silicon microchannels having a rectangular, trapezoidal or double-trapezoidal cross section are investigated. The roles of the Knudsen number and the cross section aspect ratio on the friction factor reduction due to the rarefaction are pointed out.
MORINI G., M. SPIGA, P. TARTARINI (2004). Rarefaction Effects on Friction Factor of Gas Flow in Microchannels. SUPERLATTICES AND MICROSTRUCTURES, 35, 587-599 [10.1016/j.spmi.2003.09.013].
Rarefaction Effects on Friction Factor of Gas Flow in Microchannels
MORINI, GIAN LUCA;
2004
Abstract
The microfluidic devices are today used in many engineering applications. However, despite much progress in this field, the fundamental understanding of fluid flow and heat transfer in microscale is still not satisfactory. In this study, the rarefaction effects on the pressure drop for an incompressible flow through silicon microchannels having a rectangular, trapezoidal or double-trapezoidal cross section are investigated. The roles of the Knudsen number and the cross section aspect ratio on the friction factor reduction due to the rarefaction are pointed out.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
