Abstract
We investigate pressure driven flow in the transition and free-molecular flow regimes with the objective of developing unified flow models for channels and ducts. These models are based on a velocity scaling law, which is valid for a wide range of Knudsen number. Simple slip-based descriptions of flowrate in channels and ducts are corrected for effects in the transition and free-molecular flow regimes with the introduction of a rarefaction coefficient. The resulting models can predict the velocity distribution, mass flowrate, pressure and shear stress distribution in rectangular ducts in the entire Knudsen flow regime.
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Beskok, A. (2010). Gas Flows in the Transition and Free Molecular Flow Regimes. In: Kakaç, S., Kosoy, B., Li, D., Pramuanjaroenkij, A. (eds) Microfluidics Based Microsystems. NATO Science for Peace and Security Series A: Chemistry and Biology. Springer, Dordrecht. https://doi.org/10.1007/978-90-481-9029-4_13
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DOI: https://doi.org/10.1007/978-90-481-9029-4_13
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