Abstract
The behavior of a plane turbulent jet issuing near a circular wall in the presence of a ventilating gap between the jet nozzle and the wall has been investigated experimentallly. The effect of the gap width and the angle of deflection of the circular wall on the rate of entrainment and position of point of attachment has been examined. The results demonstrate the dependence of the rate of entrainment through the gap and the location of attachment point on the geometric parameters involved. Moreover, the turbulence level and velocity profiles of the inner layer is significantly influenced by the presence of the ventilating gap.