Patent ID: 9297260
Filing Date: 2016-03-29
CPC Classification: B64C,F01D,F05D,Y02T,Y10T

Claim Text:
1. An airflow control device, comprising: a vortex shedding structure portion discharging an airflow flowing on a surface in a flow direction as a vortex flow; a downstream side structure portion disposed on a downstream side of the airflow from the vortex shedding structure and having a surface on which the airflow flows; a first electrode disposed on the surface of the downstream side structure portion; and a second electrode disposed in the downstream side structure portion and on a downstream side of the airflow from the first electrode, wherein a voltage is applied between the first and second electrodes to generate a plasma induced flow having a flow direction parallel to the flow direction of the airflow for controlling flow of the airflow on the surface of the downstream side structure portion, and wherein the voltage is applied according to a pulse modulation frequency that causes a dominant frequency of the vortex flow discharged from the vortex shedding structure portion to converge with the pulse modulation frequency.