A numerical study of convection in a channel with porous baffles
(Da), thermal conductivity ratio ?? k e kf ?? , baffle thickness ( * ) , non-dimensional
baffle spacing ( * ) , and non-dimensional baffle height ( * ) .
The results of the study established that porous baffles out perform solid baffles from a pressure drop point of view. However, porous baffles under perform solid baffles from a heat transfer point of view. The ratio representing increase in heat transfer per unit increase in pumping power (heat transfer performance ratio) was found to be less than unity for all cases. Increasing the Darcy number was found to produce less desirable heat transfer enhancement ratios. Increasing the non-dimensional baffle spacing (d/w) and the baffle aspect ratio (H/w) were found to enhance heat transfer.
Advisor:Anand, Nagamangala K.; Chen, Hamn-Ching; Rajagopal, Kumbakonam
School:Texas A&M University
School Location:USA - Texas
Source Type:Master's Thesis
Keywords:convection finite volume heat transfer laminar numerical porous media simplec
Date of Publication:12/01/2003