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Faculty o Technology and Science
Environmental and Energy Systems
Karlstad University Studies2010:40
Kamal Rezk
CFD as a Tool orAnalysis o Complex
Geometry
Perspectives on time ecient simulations ointerior household appliance components
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Kamal Rezk
CFD as a Tool orAnalysis o Complex
Geometry
Perspectives on time efcient simulations ointerior household appliance components
Karlstad University Studies2010:40
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7/27/2019 Full Text 333
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Kamal Rezk. CFD as a Tool or Analysis o Complex Geometry - Perspectives on time
efcient simulations o interior household appliance components
Licentiate thesis
Karlstad University Studies 2010:40
ISSN 1403-8099
ISBN 978-91-7063-331-7
Author
Distribution:
Karlstad University
Faculty o Technology and Science
Environmental and Energy Systems
SE-651 88 Karlstad, Sweden+46 54 700 10 00
www.kau.se
Printed at: Universitetstryckeriet, Karlstad 2010
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CFD as a Tool or Analysis
o Complex Geometry
There is a constant development and expansion o CFD usage in the industry today.
Hence, certain issues need to be addressed as they are requently encountered. Numerous
complex fow topics today require computer cluster networks due to the vastness andcomplexity o control volumes and fow processes respectively. This requirement is not
accessible or all companies. Secondly, the implementation o commercial CFD codes in
minor industrial companies is generally utilized as a black box based on the knowledge
on fuid mechanic theory. In addition, increased partnerships between industry and the
academic world involving various CFD based design processes generally yields to a verbal
communication interace. It is a vital step to ampliy the communication process given
the act o the level o dependency between both sides.
The aim o this thesis is to present methods o CFD analysis based on these issues.
In paper I, the CFD code is utilized as a communication tool in an integrated design
process. The design is conducted on a limited geometry in an internal duct system o a
heat pump tumble dryer. The design was perormed by a CAD-engineer in which the
geometry modications were based with visual data and assessed with two design criteria.
In paper II, volume-averaged equations were implemented in a tube-n heat exchanger in
order to simulate and calculate airfow and pressure drop respectively. The purpose o the
volume-averaged equations was to eliminate the arrangement o n and tube bundles with
the intention o reducing computation time.