Abstract
The vortex generator of the trapezoidal shape fin is mounted on the bottom wall of the channel, their angles with respect to main flow are taken to 30?, 45? and 60? and their inclination angle with respect to bottom wall are set to 45?, 60? and 90?. The effects in the wake of VG are examined in above condition and the Nusselt number, pressure drop, bulk temperature and velocity distribution are compared with the various VG conditions. In the rectangular channel, the effect of heat transfer enhancement with the trapezoidal shape fin is higher performance than with the delta shape one.
