Free convection and radiation for a vertical wall with varying temperature embedded in a porous medium

Autor:	Zainal Alimuddin Zainal, P. A. Aswatha Narayana, Kankanhalli N. Seetharamu, Lam Weng Siew, Irfan Anjum Badruddin
Rok vydání:	2006
Předmět:	Natural convection Materials science Darcy's law General Engineering Thermodynamics Mechanics Condensed Matter Physics Nusselt number Power law Isothermal process Physics::Fluid Dynamics Heat transfer Streamlines streaklines and pathlines Porous medium
Zdroj:	International Journal of Thermal Sciences. 45:487-493
ISSN:	1290-0729
DOI:	10.1016/j.ijthermalsci.2005.05.008
Popis:	Free convection with and without radiation past a vertical plate embedded in a saturated porous medium has been analysed. The partial differential equations are non-dimensionalised and solved using Finite Element Method. Temperature distribution in the porous medium has been studied for constant and varying wall temperatures. For non-isothermal case, the wall temperature has been assumed as power law function. Numerical results for local Nusselt number are presented for the case of, with and without radiation. It is found that the local Nusselt number decreases with the height of the vertical plate for an isothermal wall temperature. However, local Nusselt number increases with the height of the plate for linearly varying wall temperature and it also increases with radiation.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::0ebb522be1f294554e73440a9de1c037 https://doi.org/10.1016/j.ijthermalsci.2005.05.008 Zobrazit plný text záznamu Full Text from ScienceDirect