Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
653800 | International Communications in Heat and Mass Transfer | 2010 | 4 Pages |
Abstract
The hydrodynamics and thermal behaviors of fluid flow in axially moving micro-concentric cylinders are investigated analytically. Effects of Knudsen number, velocity and radius of the cylinders on the microchannel hydrodynamics and thermal behaviors are investigated. It is found that as Kn increases the slip in the hydrodynamic and thermal boundary condition increases. The slip and the jump at the inner surface are much larger than that of the outer one. When the outer cylinder velocity approaches the inner cylinder one, the slip velocity vanishes. Also, the effect of the variation of U1 on the temperature jump for adiabatic outer surface is insignificant.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Fluid Flow and Transfer Processes
Authors
A.F. Khadrawi, Ahmad Al-Shyyab,