HEAT DISSIPATION SYSTEM WITH BOUNDARY LAYER DISRUPTION

摘要

A heat dissipation system that includes a structure (122) having a surface (124) with a cavity (126) recessed on the surface (124). A wing (140) or channel causes a vortex to occur in the cavity (126). Destabilizers (206), such as projections or recesses (200) are disposed on the sidewall (132) of the cavity (126) to disrupt the local surface boundary layer (180) that forms in the cavity (126). Alternatively, a plurality of freely moving bead elements (270) are disposed in the cavity to disrupt the local surface boundary layer (180). A cover (270) can be included that prevents the bead elements (270) from exiting the cavity (126).