| 摘要 |
An active cooling assembly is described. One embodiment of the active cooling assembly includes a fin configured to enable convective heat transfer to an airflow passing over the fin. A boundary layer accumulates between the fin and the airflow, and the boundary layer includes a region of heated air attached to a side of the fin. The embodiment also includes a blade configured to oscillate proximate to the fin to shear the boundary layer that accumulates between the fin and the airflow. The region of heated air is sheared from the side of the fin so that the impedance attributable to the boundary layer of the convective heat transfer from the fin to the airflow is reduced. The fin is coupled to a stationary arm, and the blade is coupled to a swing arm. The swing arm and a spring are driven at a resonant frequency by an actuator.
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