Aerodynamic analysis of helicopter side intake variants by full scale wind tunnel measurements

F. Knoth, J. H. You, C. Breitsamter

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

8 Scopus citations

Abstract

The work presented in this paper aims at the aerodynamic optimization of engine side air intakes of a lightweight helicopter. For this purpose wind tunnel (W/T) tests are conducted on a novel full scale model of a helicopter fuselage section at the Institute of Aerodynamics and Fluid Mechanics of the Technische Universität München (TUM-AER). The new wind tunnel model includes a duct system, venturi meter and a radial fan to provide engine mass flow rates corresponding to realistic helicopter operation conditions. With 5-hole pressure probes significant trends on the total pressure drop and disfortion coefficients are found at the Aerodynamic Interface Plane (AIP) for three different air intakes tested in hover and forward flight conditions. Further investigations are conducted concerning local surface pressure distributions.

Original languageEnglish
Title of host publication41st European Rotorcraft Forum 2015, ERF 2015
PublisherDeutsche Gesellschaft fuer Luft und Raumfahrt (DGLR)
Pages81-91
Number of pages11
ISBN (Electronic)9781510819832
StatePublished - 2015
Event41st European Rotorcraft Forum 2015, ERF 2015 - Munich, Germany
Duration: 1 Sep 20154 Sep 2015

Publication series

Name41st European Rotorcraft Forum 2015, ERF 2015
Volume1

Conference

Conference41st European Rotorcraft Forum 2015, ERF 2015
Country/TerritoryGermany
CityMunich
Period1/09/154/09/15

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