Stereoscopic Particle Image Velocimetry-Based Integral Load Determination on an Aircraft Propeller

Stereoscopic particle image velocimetry has been used to measure the three-dimensional velocity field around a one-tenth-scale, two-bladed de Havilland Canada Beaver aircraft-propeller model operating at tip Mach numbers of 0.73 and 0.78. Measurements are acquired at several radial locations in phas...

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Bibliographic Details
Published in:Journal of aircraft 2012-09, Vol.49 (5), p.1497-1506
Main Authors: Ragni, D, van Oudheusden, B. W, Scarano, F
Format: Article
Language:English
Subjects:
Aerodynamics
Aircraft
Applied fluid mechanics
Atmospheric pressure
Blades
Exact sciences and technology
Fluid dynamics
Fundamental areas of phenomenology (including applications)
Instrumentation for fluid dynamics
Load
Navier-Stokes equations
Partial differential equations
Physics
Propellers
Stereoscopic
Three dimensional
Thrust
Velocity
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Summary:Stereoscopic particle image velocimetry has been used to measure the three-dimensional velocity field around a one-tenth-scale, two-bladed de Havilland Canada Beaver aircraft-propeller model operating at tip Mach numbers of 0.73 and 0.78. Measurements are acquired at several radial locations in phase-locked mode, encompassing the blade length; specific data postprocessing is aimed at determining the aerodynamic forces, namely, the sectional thrust and torque at each cross section. The evaluation of the pressure field is based on the integration of the Navier-Stokes equations with the experimental velocity fields expressed in a frame moving with the propeller blade. The approach returns the evaluation of the three-dimensional pressure field, in particular over the blade surface, considerably simplifying the flow visualization and analysis in raising propeller studies. The velocity and pressure data are further integrated by means of a contour approach to yield the propeller thrust and torque, and compared to data directly derived from a multicomponent balance and from the engine power consumption.
ISSN:0021-8669
1533-3868
DOI:10.2514/1.C031853