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Heat Sinks: Pin Fins
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Develop a simple and accurate model for predicting natural
convection heat transfer from arrays of isothermal cylinders and pins
for a wide range of Rayleigh number and cylinder spacing.
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Simple correlation algorithms are available for a range of
configurations ranging from a single, isolated cylindrical pin to arrays
of cylindrical pins in an aligned or staggered arrangement.
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An area-mean Nusselt number correlation for pin arrays is
presented in terms of a linear superposition of two terms: a diffusive
term and a convective term.
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The correlation is easy to implement, accurate to within 15% and
can be used for a wide range of applications such as pin-fin heat sinks,
heat exchangers, heating and refrigeration equipment and nuclear
reactors.
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Au, V.C., 1999, "Natural Convection Heat Transfer Model
for Arrays of Horizontal Isothermal Cylinders and Pins," Master of Applied
Science Thesis, Department of Mechanical Engineering, University of Waterloo.
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NSERC Operating Grant
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Nortel Networks
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