Development of a Rotating Rake Array for Boundary-Layer-Ingesting Fan-Stage Measurements | Zendy

John D. Wolter | Zendy; David Arend | Zendy; Stefanie Hirt | Zendy; John A. Gazzaniga | Zendy

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Development of a Rotating Rake Array for Boundary-Layer-Ingesting Fan-Stage Measurements

Author(s) -

John D. Wolter,

David Arend,

Stefanie Hirt,

John A. Gazzaniga

Publication year - 2017

Publication title -

53rd aiaa/sae/asee joint propulsion conference

Language(s) - English

Resource type - Conference proceedings

DOI - 10.2514/6.2017-4636

Subject(s) - boundary layer , stage (stratigraphy) , rake , layer (electronics) , acoustics , computer science , physics , mechanical engineering , materials science , engineering , mechanics , geology , composite material , paleontology

The recent Boundary-Layer-Ingesting Inlet/Distortion Tolerant Fan wind tunnel experiment at NASA Glenn Research Center’s 8by 6-foot Supersonic Wind Tunnel (SWT) examined the performance of a novel inlet and fan stage that was designed to ingest the vehicle boundary layer in order to take advantage of a predicted overall propulsive efficiency benefit. A key piece of the experiment’s instrumentation was a pair of rotating rake arrays located upstream and downstream of the fan stage. This paper examines the development of these rake arrays. Pre-test numerical solutions were sampled to determine placement and spacing for rake pressure and temperature probes. The effects of probe spacing and survey density on the repeatability of survey measurements was examined. These data were then used to estimate measurement uncertainty for the adiabatic efficiency.

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