Abstract
This paper presents a simple computational procedure for the laminar, fully established velocity and temperature in straight ducts with irregular, singly connected cross‐sections by virtue of a control volume discretization of the momentum and energy equations in boundary‐fitted co‐ordinate systems. The combined procedure has been applied to a large group of ducts whose cross‐sections possess different levels of difficulty. The numerical predictions for the pressure drop (friction factor) and the convective heat transfer coefficient (Nusselt number) have been reported for a sub‐class of ducts with curved sides and sharp corners utilizing various grid sizes.
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