Abstract
Heat transfer in a rotating square duct was numerically simulated by using the fourth order finite difference method. In order to investigate the effect of the Coriolis force on the turbulence, the large eddy simulation was adopted with a dynamic subgrid scale model. The present results clearly showed the peripheral variation of the wall friction and the heat transfer coefficient : the increased and decreased values on pressure and suction surfaces, respectively. For higher rotation number cases, decay of the turbulence intensity near the leading wall (suction side) was observed. The friction coefficient, Cf and the Colburn's j factor were increased by the effect of the Coriolis force and the increased amount was larger for Cf than for j.
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