Open AccessNatural Convection in a Square Cavity Filled with Saturated Porous Media and Partially Heated From Below
Author(s) -
Noah M. Salih,
Sarah Burhan Ezzat,
Afnan A. Hassan,
Qusay Kamil Jasim
Publication year - 2021
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/1094/1/012059
Subject(s) - enclosure , natural convection , rayleigh number , thermodynamics , heat flux , mechanics , rayleigh scattering , materials science , heat transfer , work (physics) , square (algebra) , porous medium , convection , porosity , physics , composite material , optics , mathematics , geometry , telecommunications , computer science
This paper represents an experimental study of natural convection heat transfer in a square enclosure filled with saturated porous medium and partially heated from below. Two locations (left and middle of the enclosure) has been studied in the present work to explain heat and temperature distribution inside the enclosure. The experimental results obtained under constant heat flux within the range of (1000-10000 W/m 2 ), and modified Rayleigh number within the range of (0 < Ram < 420). The experimental results are presented in the form of temperature distribution, Nussalt and Rayleigh number are plotted versus heat flux, and for both cases. The results were expressed as isotherms, distributions. The location of the heating element has a noticeable effect on the distribution of heat and temperature. The study indicated that the Nussalt number depends on the Rayleigh number and is directly proportional to it. Furthermore, two empirical equations were obtained for the considered study cases illustrated the correlation between the Nussalt and Rayleigh numbers.