SHAPED HEAT SINKS TO OPTIMIZE FLOW

摘要

A heat sink with shape-optimized fins provides for improved heat transfer. Synthetic jets create vortices which enhance heat transfer and cooling of downstream fins, while the shape of the fins limits pressure drop in the flow over the cooling fins.

主权项

1. A cooling system comprising:
a base thermally connected to an object to be cooled; a primary flow generator that provides for a cooling fluid flow across a surface of the base; and an array of fins thermally coupled to the base, the array of fins comprising:
a first fin having an internal hollow cavity formed therein and at least one downstream orifice to provide fluid communication between the internal hollow cavity and an external environment; anda second fin disposed downstream of the cooling fluid flow from the first fin; and a synthetic jet disposed within the internal hollow cavity of the first fin that produces a flow oscillation at the at least one downstream orifice that interacts with the cooing fluid flow to shed thermal boundary layers on the second fin.