Forced convection in cellular porous materials: Effect of temperature-dependent conductivity arising from radiative transfer

✍ Scribed by D.A. Nield; A.V. Kuznetsov

• Publisher: Elsevier Science
• Year: 2010
• Tongue: English
• Weight: 307 KB
• Volume: 53
• Category: Article
• ISSN: 0017-9310
• DOI: 10.1016/j.ijheatmasstransfer.2010.02.041

✦ Synopsis

Forced convection in a channel occupied by a saturated cellular porous medium is investigated. The problem is formulated as a combined conductive-convective-radiative problem in which radiative heat transfer is treated as a diffusion process. The problem is relevant to cellular foams formed from plastics, ceramics and metals. Special cases in which radiative conductivity is modeled as a power function of temperature as well as the Stefan-Boltzmann case are investigated. Analytical and numerical solutions are obtained; Darcy and clear fluid limits are also studied.