Flow generated by oscillatory uniform heating of a rarefied gas in a channel
Jason Nassios, Ying Wan Yap, John E Sader
Journal of Fluid Mechanics | CAMBRIDGE UNIV PRESS | Published : 2016
Kinetic theory provides a rigorous foundation to explore the unsteady (oscillatory) flow of a dilute gas, which is often generated by nanomechanical devices. Recently, formal asymptotic analyses of unsteady (oscillatory) flows at small Knudsen numbers have been derived from the linearised Boltzmann-Bhatnagar-Gross-Krook (Boltzmann-BGK) equation, in both the low- and high-frequency limits (Nassios & Sader, J. Fluid Mech., vol. 708, 2012, pp. 197-249 and vol. 729, 2013, pp. 1-46; Takata & Hattori, J. Stat. Phys., vol. 147, 2012, pp. 1182-1215). These asymptotic theories predict that unsteadiness can couple strongly with heat transport to dramatically modify the overall gas flow. Here, we study..View full abstract
The authors acknowledge financial support from Australian Postgraduate Awards and the Australian Research Council Grants Scheme.