ISSN Online: 2379-1748
ISBN Flash Drive: 978-1-56700-469-4
ISBN Online: 978-1-56700-470-0
Second Thermal and Fluids Engineering Conference
MIXED CONVECTION HEAT TRANSFER IN A LID-DRIVEN CAVITY WITH A ROTATING CIRCULAR CYLINDER
Abstract
Mixed convection heat transfer in a lid-driven cavity with a rotating cylinder was analyzed numerically for
various pertinent parameters. Such parameters include Richardson number, non-dimensional angular velocity
of the cylinder, and its direction. The governing equations were solved using the average weighted residuals
of Galerkin method. The numerical method used in this investigation was validated against published results
in the literature. The results of this investigation were presented in terms of streamlines, isotherms, and
average Nusselt number. The present results illustrated that the average Nusselt number was found to depend
on the direction of the angular velocity. The average Nusselt number increased with an increase in the
clockwise angular velocity of the cylinder for various Richardson numbers. However, it decreased with an
increase in the counterclockwise until reached a critical velocity where average Nusselt number increased
with an increase in the angular velocity. This study illustrated that the maximum heat transfer can be
achieved when placing a rotating cylinder inside a cavity compared with non-rotating cylinder.