Crossflow vorticity sensor

Measuring and testing – Wind tunnel: aerodynamic wing and propeller study

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73178R, G01M 900

Patent

active

047277513

ABSTRACT:
A crossflow vorticity sensor is provided for the detection of crossflow vorticity characteristics. The crossflow vorticity sensor is comprised of crossflow sensors (10) which are non-invasively adhered to swept wing laminar surface (12) either singularly, in multi-element strips (11), in polar patterns (40), or orthogonal patterns (41). These crossflow sensors (10) are comprised of hot-film sensor elements (18) which operate as a constant temperature anemometer circuit to detect heat transfer rate changes. Accordingly, crossflow vorticity characteristics are determined via cross-correlation. In addition, the crossflow sensors (10) have a thickness which does not exceed a maximum value h in order to avoid contamination of downstream crossflow sensors (10).

REFERENCES:
patent: 4158236 (1979-06-01), Levy
patent: 4435695 (1984-03-01), Maris
patent: 4445196 (1981-04-01), Gonet
patent: 4563684 (1986-01-01), Maris

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