Vectoring of wall bounded planar ventilation jet with synthetic jet actuator

Synthetic jet has now become a well known fluidic control method in the area of active flow control and attracted extensive research. One appealing attribute of synthetic jets is that they can generate finite streamwise momentum with zero net mass injection, which suggests there is no need of external mass supply except the ambient fluid. Jet vectoring is an important aspect among the various utility of synthetic jets considering the potential benefits of thrust vectoring, mixing enhancement and noise abatement associated with the vectoring effect. This study investigates the applicability of vectoring a ventilation jet using synthetic jet actuators. Particularly, a wall constraint is added to the ventilation jet, which is the case commonly seen in an indoor environment. The results show that the synthetic jet capable of vectoring isolated jet is not able to achieve the same vectoring when the jet is constrained by the wall. A much stronger synthetic jet will be needed in order to fully detach the jet from the wall.