ISSN Online: 2379-1748
ISBN Flash Drive: 978-1-56700-469-4
ISBN Online: 978-1-56700-470-0
Second Thermal and Fluids Engineering Conference
EFFECT OF AN INSECT SCREEN ON FREE CONVECTION FROM A WINDOW
Abstract
A numerical study is conducted of laminar free convection from a vertical window glazing adjacent to an insect
screen. The insect screen is modelled as an isotropic porous medium using a Brinkman-extended Darcy model.
The results are validated against measurements from the literature. The effects of Darcy number and Rayleigh
number on the convective heat transfer are obtained for a Prandtl number of Pr = 0.72 (air). The objective is to
characterize the effect of insect screens on free convection from windows and develop a general correlation,
suitable for use in building energy simulation. This extended abstract reports the recent progress of this work.