## NUMERICAL STUDY OF FORCED CONVECTION HEAT TRANSFER OVER CIRCULAR AND OVAL TUBE BANKS USING RECTANGULAR WINGLET VORTEX GENERATORS
## 摘要The present work represents a two- dimensional numerical investigation of forced convection heat transfer
over circular and oval tube banks of seven rows in an inline arrangement with rectangular longitudinal vortex
generators (LVGs). The effects of Reynolds number (from 550 to 1775), the number of vortex generators (3,
and 7) and the angle of attack (30° and 45°) of rectangular VGs on the heat transfer and fluid flow
characteristics are examined. The characteristics of average Nusselt number (Nu), associated pressure drop
(ΔP), streamline distribution and temperature contours are studied numerically by the aid of the
computational fluid dynamics (CFD). The maximum heat transfer coefficient (nearly 75 Wm |

主页 | 旧刊 | 有关人员 | 未来大会 | American Society of Thermal and Fluids Engineering |