A subsonic jet thrust vector control using fluidic means

摘要

Fluidic thrust vectoring of a subsonic jet is examined by the asymmetric application of coflow to the jet shear layers. When coflow is applied to one side of a two-dimensional jet, the entrainment of the flow due to the Coanda effect gives a rise to the cross-stream pressure gradient resulting in an asymmetric alteration of the direction of the exhaust jet, which represents a thrust vectoring effect. This study reports a computational fluid dynamics (CFD) investigation of the concept. As the mass flow rate of the secondary flow increases the vectoring angle of the main stream increases.