Pressure drag coefficient and heat transfer are experimentally investigated around a single noncircular cylinder in cross-flow under angle of attack and Reynolds number based on equivalent diameter of a circular cylinder. The results show that the trend of pressure drag coefficient against the angle of attack has a wavy shape but the wavy trend of the Nusselt number is smoother relative to the drag coefficient behavior. It is found that for and over the whole range of the Reynolds number, the pressure drag coefficient has a minimum value of about at , 180 deg, and 330 deg and a maximum value of about at and 270 deg. The corresponding value of the mean Nusselt number to that of the equivalent circular tube is at and 270 deg as well as at and 180 deg.
Pressure Loss and Heat Transfer Characterization of a Cam-Shaped Cylinder at Different Orientations
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Nouri-Borujerdi, A., and Lavasani, A. M. (September 22, 2008). "Pressure Loss and Heat Transfer Characterization of a Cam-Shaped Cylinder at Different Orientations." ASME. J. Heat Transfer. December 2008; 130(12): 124503. https://doi.org/10.1115/1.2969259
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