Accession Number : AD0665097

Title :   MEASUREMENT OF PRESSURES ON A DELTA WING OSCILLATING IN HEAVE AT A HIGH ANGLE OF INCIDENCE.

Descriptive Note : Technical rept.,

Corporate Author : ROYAL AIRCRAFT ESTABLISHMENT FARNBOROUGH (ENGLAND)

Personal Author(s) : Keating,R. F. A.

Report Date : OCT 1967

Pagination or Media Count : 15

Abstract : Previous measurements of leading-edge vortex position on a delta wing oscillating in heave have shown fair agreement with the phase lags predicted theoretically by Randall. In this report measurements of surface pressure are described for the same oscillating wing. The analysis shows that the cyclic phase lag in the pressure variations underneath the vortex field correlates well with a frequency parameter based on the distance back from the wing apex. The agreement with the previous flow observations is good. (Author)

Descriptors :   (*DELTA WINGS, AERODYNAMIC LOADING), OSCILLATION, ASPECT RATIO, VORTICES, FLAT PLATE MODELS, LEADING EDGES, AERODYNAMIC CONTROL SURFACES, PRESSURE, CORRELATION TECHNIQUES, PHASE STUDIES, ANGLE OF ATTACK, WIND TUNNEL MODELS, MODEL TESTS, GREAT BRITAIN

Subject Categories : Aerodynamics
      Aircraft
      Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE