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TECHNICAL NOTES

Dissipation in Small Scale Gaseous Flows

[+] Author and Article Information
Nicolas G. Hadjiconstantinou

Mechanical Engineering Department, Massachusetts Institute of Technology, Cambridge, MA 02139

J. Heat Transfer 125(5), 944-947 (Sep 23, 2003) (4 pages) doi:10.1115/1.1571088 History: Received July 12, 2002; Revised February 11, 2003; Online September 23, 2003
Copyright © 2003 by ASME
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References

Figures

Grahic Jump Location
Variation of the fully developed Nusselt number Nut with Brinkman number for Kn=0.07. The solid line is the prediction of Eq. (13), and the stars denote DSMC simulations.  
Grahic Jump Location
Nondimensional flowrate Q̄ as a function of the Knudsen number. The solid line denotes the numerical solution of the Boltzmann Eq. [12], the stars denote DSMC simulations of gravity-driven flow and the dashed line denotes the slip-flow prediction. Error estimates are given by the star size.
Grahic Jump Location
Nondimensional total heat exchange qt/(ρub22RT) as a function of the Knudsen number. The solid line denotes the theoretical prediction Eq. (21), the stars denote DSMC simulations of gravity-driven flow and the dashed line denotes the slip-flow prediction. Error estimates are given by the star size.

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