Whole-field velocity measurement in unsteady periodic flows

Reddy, U.; Matos, C.; Mahalingam, R.; Komerath, N. M.

doi:10.2514/6.1997-2325

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1998

1999

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Cited by 2 publications

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“…Details of the technique including numerical validation and robustness to experimental noise are dealt with in Ref. [7].…”

Section: Third Component Methodsmentioning

confidence: 99%

3D velocity field measurement in large-scale rotor flows

Reddy

Komerath

1999

30th Fluid Dynamics Conference

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Planar velocity measurements in two rotorcraft flows are presented. The first is that of an isolated rotor in axial flight in a large settling chamber, with measurement parameters and test conditions typical of a full-scale rotor wake. The clean periodicity of this flow allows capture of fundamental vortex dynamics, as well as phase-resolved velocity measurements using an inexpensive white-light-based measurement system. The second flowfield is that of a rotor wake interacting with a fixed wing in a wind tunnel, representing many features of tiltrotor flows. This experiment was used as a test bed to develop and refine a technique to capture all 3 components of phase-resolved velocity over the volume of the interaction region. The velocity field is presented in several chordwise and spanwise sections as a function of rotor azimuth.

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“…Details of the technique including numerical validation and robustness to experimental noise are dealt with in Ref. [7].…”

Section: Third Component Methodsmentioning

confidence: 99%