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Prediction and measurement of blade-vortex interaction loading (1995)

Kube, Roland ; Rahier, Gilles ; Gallman, Judith M. ; [et al.]

In: CASI

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Publication Date: 2019-06-28

Description: An extensive quantity of airload measurements was obtained for a pressure-instrumented model of the BO-105 main rotor for a large number of higher-harmonic control (HHC) settings at Duits-Nederlandse Wind Tunnel (DNW). The wake geometry, vortex strength, and vortex core size were also measured through a laser light sheet technique and LDV. These results are used to verify the BVI airload prediction methodologies developed by AFDD, DLR, NASA Langley, and ONERA. The comparisons show that an accurate prediction of the blade motion and the wake geometry is the most important aspect of the BVI airload predictions.

Keywords: AERODYNAMICS

Type: NASA-TM-110824 , NAS 1.15:110824 , AD-A294468

Format: text

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