Patent ID: 11933334
Assignee: ENTERPRISE SCIENCE FUND, LLC
Field: Mechanical elements (Mechanical engineering)
Classification: CPC B  F  Y | IPC B  F

Claim 12:
13. A method to modify heat transfer properties between a fluid and a surface, comprising:
selecting a time scale multiplier, T+, greater than 50 for a viscous time scale, η′, in a turbulent boundary layer of a fluid flowing relative to a surface of an object with a friction Reynolds number, Reτ, greater than 180;
calculating an actuation frequency, f, for injecting momentum along the surface of the object and perpendicular to a direction of fluid flow relative to the surface of the object to disrupt a range of eddies in the turbulent boundary layer with characteristic time scales exceeding 50η′; and
actuating one or more actuators with the calculated actuation frequency, f, to inject momentum perpendicular to the direction of fluid flow to disrupt the range of eddies in the turbulent boundary layer to selectively increase or decrease a rate of heat transfer between the fluid and the surface of the object.