Print Email Facebook Twitter Investigation of the unsteadiness of a shock-reflection interaction with time-resolved particle image velocimetry Title Investigation of the unsteadiness of a shock-reflection interaction with time-resolved particle image velocimetry Author Van Oudheusden, B.W. Jöbsis, A.J.P. Scarano, F. Souverein, L.J. Faculty Applied Sciences Department Aerodynamics and Wind Energy Date 2011-02-24 Abstract The spatio-temporal dynamics of an impinging shock/boundary layer interaction atMach 2 and under incipient separation conditions, has been investigated experimentally by means of high-speed particle image velocimetry (PIV). The available PIV acquisition rate of up to 20 kHz permits a time-resolved characterization of the interaction. The dynamics of different flow regions—notably the separation region and the reflected shock—were quantified by means of temporal auto-correlation fields and pseudo-spectral analysis. The PIV data further enable to investigate the relationship between spatially extended flow features, such as shock position and bubble size, as well as the influence of the upstream boundary layer. The results confirm earlier studies that there is an important upstream effect on the present incipient interaction. Subject shock wave boundary layer interactionparticle image velocimetry To reference this document use: http://resolver.tudelft.nl/uuid:2022e84a-eee5-4798-8db4-6c4bb4053f86 DOI https://doi.org/10.1007/s00193-011-0304-4 Publisher Springer ISSN 0938-1287 Source http://www.springerlink.com/content/h31q352481j1gt7l/ Source Shock Waves, 21 (5), 2011 Part of collection Institutional Repository Document type journal article Rights (c) 2011 The Author(s). This article is published with open access at Springerlink.com Files PDF oudheusden.pdf 1.42 MB Close viewer /islandora/object/uuid:2022e84a-eee5-4798-8db4-6c4bb4053f86/datastream/OBJ/view