caa a22 4500 606198539 CHVBK 20210128100934.0 cr unu---uuuuu 210128e20150501xx s 000 0 eng 10.1007/s00348-015-1968-9 doi (NATIONALLICENCE)springer-10.1007/s00348-015-1968-9 Analysis and characterization of ramp flow separation [Elektronische Daten] [Azeddine Kourta, Adrien Thacker, Romain Joussot] Two-dimensional separation on 25°-ramp is studied experimentally in closed-loop wind tunnel. The analysis of the flow conditions and the separation is based on wall pressure distribution, velocity fields obtained by 2D-2C PIV measurements, and velocity profiles obtained by 2C LDV measurements. The boundary layer upstream and downstream the ramp is characterized. To controlthe longitudinal pressure gradient, a trailing edge flap is used and the flap angle effects are studied. When the flap angle is equal to +7.5°, the flow around leading edge is symmetric, but the separation is 3D. For the case where the flap is not slanted (0°), the separation is 2D. Proper orthogonal decomposition is used to characterize the separation unsteadiness. Springer-Verlag Berlin Heidelberg, 2015 Kourta Azeddine Univ. Orléans, INSA-CVL, PRISME, EA4229, 8 rue Léonard de Vinci, 45072, Orléans Cedex 2, France aut Thacker Adrien Univ. Orléans, INSA-CVL, PRISME, EA4229, 8 rue Léonard de Vinci, 45072, Orléans Cedex 2, France aut Joussot Romain Univ. Orléans, INSA-CVL, PRISME, EA4229, 8 rue Léonard de Vinci, 45072, Orléans Cedex 2, France aut Experiments in Fluids Springer Berlin Heidelberg 56/5(2015-05-01), 1-14 0723-4864 56:5<1 2015 56 348 https://doi.org/10.1007/s00348-015-1968-9 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/s00348-015-1968-9 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Kourta Azeddine Univ. Orléans, INSA-CVL, PRISME, EA4229, 8 rue Léonard de Vinci, 45072, Orléans Cedex 2, France aut NATIONALLICENCE 700 1- Thacker Adrien Univ. Orléans, INSA-CVL, PRISME, EA4229, 8 rue Léonard de Vinci, 45072, Orléans Cedex 2, France aut NATIONALLICENCE 700 1- Joussot Romain Univ. Orléans, INSA-CVL, PRISME, EA4229, 8 rue Léonard de Vinci, 45072, Orléans Cedex 2, France aut NATIONALLICENCE 773 0- Experiments in Fluids Springer Berlin Heidelberg 56/5(2015-05-01), 1-14 0723-4864 56:5<1 2015 56 348