Print Email Facebook Twitter Swept Transition Experimental Platform (STEP) Title Swept Transition Experimental Platform (STEP) Author Rius Vidales, A.F. (TU Delft Ship Hydromechanics and Structures) Barahona Lopez, M. (TU Delft Aerodynamics) Kotsonis, M. (TU Delft Aerodynamics) Date 2024 Abstract A new experimental facility named Swept Transition Experimental Platform (STEP) has been designed and built for detailed studies of crossflow instability and its interaction with surface irregularities and varying wall temperature conditions. The STEP is designed for use in the anechoic low-turbulence wind tunnel facility at the Delft University of Technology (TU Delft). The new facility consists of a swept flat-plate model with a movable leading edge capable of precisely translating to create forward/backward-facing step irregularities. In addition, the plate’s wall temperature can be adjusted to study the potential of thermal laminar flow control. An adjustable pressure body provides the favorable pressure distribution required to enhance the development of crossflow instability. Static pressure measurements are conducted to characterize the nominal pressure distribution. In addition, detailed hot-wire measurements and theoretical stability calculations reveal that the combination of discrete roughness elements, pressure distribution, and experimental facility allows for a detailed study of the development of crossflow instability in the linear and non-linear growth regime. Consequently, the STEP enables further fundamental research on laminar flow control at TU Delft. To reference this document use: http://resolver.tudelft.nl/uuid:23b26a9e-7613-453e-a2ef-6700a6562f42 DOI https://doi.org/10.2514/6.2024-0942 Publisher American Institute of Aeronautics and Astronautics Inc. (AIAA) ISBN 978-1-62410-711-5 Source Proceedings of the AIAA SCITECH 2024 Forum Event AIAA SCITECH 2024 Forum, 2024-01-08 → 2024-01-12, Orlando, United States Part of collection Institutional Repository Document type conference paper Rights © 2024 A.F. Rius Vidales, M. Barahona Lopez, M. Kotsonis Files PDF rius_vidales_et_al_2024_s ... _step_.pdf 7 MB Close viewer /islandora/object/uuid:23b26a9e-7613-453e-a2ef-6700a6562f42/datastream/OBJ/view