The effect of inlet velocity and temperature on the strength of the swirling induced by a split channel: a CFD approach

Al-Atresh, R. S. and Sharifian, S. A. and Al-Faruk, A. (2012) The effect of inlet velocity and temperature on the strength of the swirling induced by a split channel: a CFD approach. In: 18th Australasian Fluid Mechanics Conference (AFMC 2012), 3-7 Dec 2012, Launceston, Australia.

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Abstract

Due to the increase of energy cost, natural heat resources and industrial waste heat have been considered as potential energy resources and has been the centre of attraction among many researchers in recent years. Limitations of the use of these freely available energy resources arise primarily from the engineering cost/efficiency challenges. Some researchers have focused on improving the efficiency of existing techniques to utilize these energy resources. Some other researchers have focused on finding new techniques of extracting energy from these heat resources. The ratio of the cost/efficiency index can be reduced not only by increasing the efficiency, but also by reducing the engineering cost. This research deals with an innovative low-cost technique to produce swirling flow by industrial wasted hot air which is already in use to induce fire-whirl by burning fuel in the laboratory. The configuration consists of two identical half cylinders which are placed off-centre. Previous studies show such a simple configuration is able to induce a swirling flow within the chamber when a hot air inlet is used instead of a fire. In this computational work, a configuration with nearly arbitrary geometries is modelled and the effect of the inlet temperature and velocity on the swirling strength is assessed. The computational results show reasonable agreement with the existing experimental data.


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Item Type: Conference or Workshop Item (Commonwealth Reporting Category E) (Paper)
Refereed: Yes
Item Status: Live Archive
Additional Information: © The 18th Australasian Fluid Mechanics Conference. This publication is copyright. It may be reproduced in whole or in part for the purposes of study, research, or review, but is subject to the inclusion of an acknowledgment of the source.
Faculty / Department / School: Historic - Faculty of Engineering and Surveying - Department of Mechanical and Mechatronic Engineering
Date Deposited: 18 Jan 2013 05:18
Last Modified: 05 Mar 2018 05:48
Uncontrolled Keywords: velocity; temperature; swirling; spilt channel
Fields of Research : 09 Engineering > 0913 Mechanical Engineering > 091305 Energy Generation, Conversion and Storage Engineering
04 Earth Sciences > 0401 Atmospheric Sciences > 040101 Atmospheric Aerosols
09 Engineering > 0913 Mechanical Engineering > 091307 Numerical Modelling and Mechanical Characterisation
Socio-Economic Objective: E Expanding Knowledge > 97 Expanding Knowledge > 970109 Expanding Knowledge in Engineering
URI: http://eprints.usq.edu.au/id/eprint/22423

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