Investigation of supersonic, large wall roughness elements with QIRT and PIV

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The aim of the present study is to quantify the influence of large, ribbed wall roughness elements on the mean flow and heat transfer properties of a turbulent, supersonic boundary layer (M = 2.0). Fifteen test geometries, including one smooth and fourteen rough surfaces are tested using Schlieren, PIV and QIRT. Heat transfer measurements were obtained by the heated-thin-foil method, providing a constant heat flux boundary condition. The QIRT setup was designed to yield an accurate mapping of the surface temperature. It was observed that the geometries followed supersonic, single-cavity type flow classifications with clear, distinguishable flow features.
Original languageEnglish
Title of host publicationProceedings of the 14th Quantitative InfraRed Thermography Conference
Subtitle of host publication25 – 29 June 2018 in Berlin, Germany
Number of pages10
Publication statusPublished - 2018
EventQIRT 2018: 14th Quantitative InfraRed Thermography Conference - Hotel Berlin Alexanderplatz, Berlin, Germany
Duration: 25 Jun 201829 Jun 2018
Conference number: 14


ConferenceQIRT 2018: 14th Quantitative InfraRed Thermography Conference
Abbreviated titleQIRT 2018
Internet address

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