Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7943485 | Superlattices and Microstructures | 2013 | 19 Pages |
Abstract
In this paper, we study numerically the effects of axial wall conduction and rarefaction in parallel plates microchannel. The simultaneously developing laminar flow with a constant heat flux (H2) boundary condition will also be considered. The finite volume method is used to solve the two-dimensional Navier-Stokes and energy equations, with slip velocity and temperature jump boundary implemented at the fluid/solid interface. The results obtained by our computer code are compared to the analytical results found in the literature. For different Knudsen number Kn, thermal conductivity ratio K and dimensionless thickness E, the influence of axial conduction is demonstrated for Kn = 0, especially for large values of K and E. Concerning slip-flow, the effect of axial conduction proved to be negligible for all values of K and E.
Related Topics
Physical Sciences and Engineering
Materials Science
Electronic, Optical and Magnetic Materials
Authors
Yassine Kabar, Rachid Bessaïh, Mourad Rebay,