Heat transfer enhancement in laminar flow by a protrusion in a rectangular channel

Download files
Access & Terms of Use
open access
Altmetric
Abstract
A numerical investigation has been performed to determine the effect on heat transfer in the laminar regime of introducing a single protrusion in a rectangular channel. The geometry consists of a three dimensional channel 10 mm high, 40 mm wide and 290 mm long in which a spherical protrusion was placed 90 mm from the inlet on the centreline of one of the wide sides. The print diameter of the obstacle was equal to the height of the channel and it protruded 2.2 mm above the surfaces. A commercial code, ANSYS-CFX11.0 was used for all simulations. The resultant very complex flow and thermal fields in the channel are discussed in detail. The presence of the protrusion results in an enhancement in the total heat transfer rate of 7% above that of a channel lined with flat plates only. This is a worthwhile increase since it is brought about by a pressure increase of only 1%.
Persistent link to this record
Link to Publisher Version
Link to Open Access Version
Additional Link
Author(s)
Alshroof, Osama
Reizes, John
Timchenko, Victoria
Leonardi, Eddie
Supervisor(s)
Creator(s)
Editor(s)
Translator(s)
Curator(s)
Designer(s)
Arranger(s)
Composer(s)
Recordist(s)
Conference Proceedings Editor(s)
Other Contributor(s)
Corporate/Industry Contributor(s)
Publication Year
2008
Resource Type
Conference Paper
Degree Type
UNSW Faculty
Files
download 404_Alshroof et_al.pdf 1.19 MB Adobe Portable Document Format
Related dataset(s)