Effects of viscous dissipation on forced convective heat transfer in a channel embedded in a power-law fluid saturated porous medium

✍ Scribed by G.M. Chen; C.P. Tso

• Publisher: Elsevier Science
• Year: 2011
• Tongue: English
• Weight: 398 KB
• Volume: 38
• Category: Article
• ISSN: 0735-1933
• DOI: 10.1016/j.icheatmasstransfer.2010.10.004

✦ Synopsis

The convective heat transfer analysis in a channel embedded in a power-law fluid saturated porous medium subject to uniform heat flux is presented and compared with a Newtonian fluid concerning the effects of viscous dissipation. Governing momentum and energy equations for non-Newtonian fluids which accounts for the viscous dissipation effects are solved numerically. The temperature profiles of the non-Newtonian fluids are found to relate closely to the velocity profiles. When viscous dissipation is taken account of, Nusselt numbers for non-Newtonian fluid are found to deviate more from Newtonian fluid with increasing Brinkman number for a certain range of the Darcy number.