Accession Number : ADD013999

Title :   System for Boundary Layer Control Through Pulsed Heating of a Strip Heater.

Descriptive Note : Patent, Filed 29 Jan 88, patented 22 Nov 88,

Corporate Author : DEPARTMENT OF THE AIR FORCE WASHINGTON DC

Personal Author(s) : Franke, Milton E ; Kudelka, Lawrence

Report Date : 22 Nov 1988

Pagination or Media Count : 5

Abstract : A system is described for controlling the transition of laminar/turbulent flow at a surface which comprises a thin narrow strip heater disposed adjacent the surface and extending substantially transversely of the flow of the air stream there across, the heater being resiliently held in tension on or in closely spaced relationship to the surface, and a power source operatively connected to the heater for applying pulsed voltage of preselected amplitude and frequency to the heater. Patents. (mjm)

Descriptors :   *BANDS(STRIPS), *HEATERS, *LAMINAR FLOW, *PATENTS, *TURBULENT FLOW, AIR FLOW, BOUNDARY LAYER CONTROL, FREQUENCY, HEATING, POWER SUPPLIES, PULSES, THINNESS, VOLTAGE

Subject Categories : Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE