Features of Controlling the Vortex Flow Structure Using a Pair of Different Geometry Dimples

Abstract

This paper presents the results of a numerical study of the effects of a non-isothermal vortex flow generated by a profiled surface on the thermal and hydraulic parameters of the flow. Three variants of the dimples geometry are examined at the constant value of the Reynolds number. During direct numerical simulation, the influence of the dimples geometry onto the additional resistance of the flow surface and thermal energy efficiency were determined. It is shown that direct variation of these parameters can improve the efficiency of the profiled surface.