caa a22 4500 60619813X CHVBK 20210128100932.0 cr unu---uuuuu 210128e20151001xx s 000 0 eng 10.1007/s00348-015-2065-9 doi (NATIONALLICENCE)springer-10.1007/s00348-015-2065-9 Fast-response underwater TSP investigation of subcritical instabilities of a cylinder in crossflow [Elektronische Daten] [Alessandro Capone, Christian Klein, Fabio Di Felice, Uwe Beifuss, Massimo Miozzi] We investigate the classic cylinder in crossflow case to test the effectiveness of a fast-response underwater temperature-sensitive paint coating (TSP) in providing highly resolved spatial and time observations of the action of a flow over a bluff body surface. The flow is investigated at Reynolds number <190k, before the onset of the drag-crisis state. The obtained TSP image sequences convey an accurate description of the evolution of the main features in the fluid-cylinder interaction, like the separation line position, the pattern of the large coherent structures acting on the cylinder's surface and the small-scale intermittent streamwise arrays of vortices. Ad hoc data management and features extraction techniques are proposed which allow extraction of quantitative data, such as separation line position and vortex-shedding frequency, and results are compared to the literature. Use of TSP for water applications introduces an interesting point of view about the fluid-body interactions by focusing directly on the effect of the flow on the model surface. Springer-Verlag Berlin Heidelberg, 2015 Capone Alessandro CNR-INSEAN Istituto Nazionale Studi ed Esperienze di Architettura Navale, Via di Vallerano 139, 00128, Rome, Italy aut Klein Christian German Aerospace Center (DLR), Bunsenstr. 10, 37073, Göttingen, Germany aut Di Felice Fabio CNR-INSEAN Istituto Nazionale Studi ed Esperienze di Architettura Navale, Via di Vallerano 139, 00128, Rome, Italy aut Beifuss Uwe Bioorganic Chemistry, Institute of Chemistry, University of Hohenheim, Garbenstr. 30, 70599, Stuttgart, Germany aut Miozzi Massimo CNR-INSEAN Istituto Nazionale Studi ed Esperienze di Architettura Navale, Via di Vallerano 139, 00128, Rome, Italy aut Experiments in Fluids Springer Berlin Heidelberg 56/10(2015-10-01), 1-14 0723-4864 56:10<1 2015 56 348 https://doi.org/10.1007/s00348-015-2065-9 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s00348-015-2065-9 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Capone Alessandro CNR-INSEAN Istituto Nazionale Studi ed Esperienze di Architettura Navale, Via di Vallerano 139, 00128, Rome, Italy aut NATIONALLICENCE 700 1- Klein Christian German Aerospace Center (DLR), Bunsenstr. 10, 37073, Göttingen, Germany aut NATIONALLICENCE 700 1- Di Felice Fabio CNR-INSEAN Istituto Nazionale Studi ed Esperienze di Architettura Navale, Via di Vallerano 139, 00128, Rome, Italy aut NATIONALLICENCE 700 1- Beifuss Uwe Bioorganic Chemistry, Institute of Chemistry, University of Hohenheim, Garbenstr. 30, 70599, Stuttgart, Germany aut NATIONALLICENCE 700 1- Miozzi Massimo CNR-INSEAN Istituto Nazionale Studi ed Esperienze di Architettura Navale, Via di Vallerano 139, 00128, Rome, Italy aut NATIONALLICENCE 773 0- Experiments in Fluids Springer Berlin Heidelberg 56/10(2015-10-01), 1-14 0723-4864 56:10<1 2015 56 348