Computational investigation of micro bacward-facing step duct flow in slip regime


Çelik B. , Edis F. O.

NANOSCALE AND MICROSCALE THERMOPHYSICAL ENGINEERING, vol.11, pp.319-331, 2007 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 11
  • Publication Date: 2007
  • Doi Number: 10.1080/15567260701715438
  • Title of Journal : NANOSCALE AND MICROSCALE THERMOPHYSICAL ENGINEERING
  • Page Numbers: pp.319-331

Abstract

A comprehensive computational analysis is performed to investigate the nature of rarefied gas flow through a backward-facing step duct. A characteristic-based split Navier-Stokes FEM solver is used for the simulations of the flows found in slip regime. The second-order-slip-velocity and temperature-jump boundary conditions of Beskok and Karniadakis are applied on the duct walls. Changing flow and heat transfer behavior of the flow due to the varying conditions characterized with non-dimensional parameters are presented and discussed in this article.