A DEVICE AND METHOD FOR CONTROLLING VORTEX STRUCTURES IN A TURBULENT AIR JET

摘要

The proposed device for controlling vortex structures (5) in a turbulent airjet (3) flowing out of the air exhaustchannel, which is constituted by at least one pair of needles (1) connected toan AC voltage source to create a pulsating coronadischarge between the needles. One needle is located along and the otheracross the flow to produce a resonant effect of the pulsatingcorona discharge on the vortex structures. In the proposed method forcontrolling vortex structures in a turbulent air jet, at least onepair of needles connected to an AC voltage source to create a pulsating coronadischarge between the needles. One needle is locatedalong and the other across the flow to produce a resonant effect of thepulsating corona discharge on the vortex structures.