An Investigation of Heat Transfer for a Pulsating Laminar Flow in Rectangular Channels with a Boundary Condition of the Second Kind
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A finite difference method was used for modeling heat transfer in a pulsating laminar flow in rectangular channels with different aspect ratios for the wall boundary condition qw = const. The specific frequency ranges were found where the channel perimeter-averaged and the oscillation period-averaged Nusselt number varies in a different manner depending on the channel length and the channel aspect ratio. The predictions for the first and second type boundary conditions are compared. In both cases, there is a frequency range where the average Nusselt number can increase considerably over its steady-state value.
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- 1.Olayiwola, B.O. and Walzel, P., J. Heat Transfer, 2009, vol. 131, 051701.Google Scholar