Suscripción a Biblioteca: Guest
Portal Digitalde Biblioteca Digital eLibros Revistas Referencias y Libros de Ponencias Colecciones
Journal of Porous Media
Factor de Impacto: 1.49 Factor de Impacto de 5 años: 1.159 SJR: 0.43 SNIP: 0.671 CiteScore™: 1.58

ISSN Imprimir: 1091-028X
ISSN En Línea: 1934-0508

Volumes:
Volumen 23, 2020 Volumen 22, 2019 Volumen 21, 2018 Volumen 20, 2017 Volumen 19, 2016 Volumen 18, 2015 Volumen 17, 2014 Volumen 16, 2013 Volumen 15, 2012 Volumen 14, 2011 Volumen 13, 2010 Volumen 12, 2009 Volumen 11, 2008 Volumen 10, 2007 Volumen 9, 2006 Volumen 8, 2005 Volumen 7, 2004 Volumen 6, 2003 Volumen 5, 2002 Volumen 4, 2001 Volumen 3, 2000 Volumen 2, 1999 Volumen 1, 1998

Journal of Porous Media

DOI: 10.1615/JPorMedia.v10.i3.30
pages 261-275

Entropy Generation for Thermal Nonequilibrium Natural Convection with a Non-Darcy Flow Model in a Porous Enclosure Filled with a Heat-Generating Solid Phase

A.Cihat Baytaş
istanbul technical university

SINOPSIS

The entropy generation in a saturated porous cavity for laminar natural convection is investigated by using the non-Darcy flow model and a thermal nonequilibrium model of the heat transfer between the fluid and the solid phases. The thermal nonequilibrium model allows the fluid and solid phases not to be in local thermal equilibrium. Two-dimensional steady convection in a cavity bounded by isothermal walls at constant temperatures has been studied numerically, and it is assumed that the heat generation is only in the solid phase. The nonequilibrium assumption is very important and indispensable for many engineering applications involving high-speed flows or large temperature differences between the fluid and solid phases as a safety parameter. The utilization of the second law of thermodynamics for non-Darcy and thermal nonequilibrium porous media is focused on the entropy generation distribution for the solid-fluid scaled heat transfer coefficient, H, and the porosity-scaled conductivity ratio, γ.


Articles with similar content:

RADIAL INJECTION OF A HOT FLUID INTO A COLD POROUS MEDIUM: THE EFFECTS OF LOCAL THERMAL NONEQUILIBRIUM
Computational Thermal Sciences: An International Journal, Vol.2, 2010, issue 3
Andrew P. Bassom, D. Andrew S. Rees
Forced Convection through a Hyperporous Duct with Internal Heating/Cooling Effects
International Journal of Fluid Mechanics Research, Vol.30, 2003, issue 5
Kamel Hooman
Numerical investigation of turbulent flow in an annular duct partly filled with a porous substrate
ICHMT DIGITAL LIBRARY ONLINE, Vol.0, 2009, issue
Nadia Allouache, Salah Chikh, Rachid Bennacer
INTRODUCTION: CHALLENGES AND OPPORTUNITIES IN SOLAR-THERMAL TECHNOLOGIES
Annual Review of Heat Transfer, Vol.15, 2012, issue 15
Gang Chen, Jacob Karni
LATTICE BOLTZMANN SIMULATION OF THERMAL NON-EQUILIBRIUM FORCED CONVECTIVE FLOW AND ENERGY STORAGE IN A POROUS CHANNEL
ICHMT DIGITAL LIBRARY ONLINE, Vol.0, 2014, issue
Hussein El Abrach, Baycain Amami, Hacen Dhahri, Abdallah Mhimid