2026-10-14T10:21:10Zhttps://www.radar-service.eu/oai/OAIHandler

10.35097/farApPGYflANpeIi2026-10-09T11:06:10Zradar4kit

https://dx.doi.org/10.35097/farApPGYflANpeIi Andreolli, Andrea Hutchins, Nicholas Frohnapfel, Bettina Gatti, Davide Videos of decaying turbulent secondary motions Karlsruhe Institute of Technology 2024 Engineering dataset Dataset info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-sa/4.0/legalcode We produce videos of turbulent secondary motions of different sizes as they decay starting from a statistically steady condition. The secondary motions are generated by adding some strip-type roughness to the walls of a channel flow; strip type roughness consists in spanwise-alternating streamwise-elongated strips of smooth and rough wall. The size of the induced motions can be controlled by adjusting the width s shared by smooth and rough strips. Once the secondary motions reach a statistically-steady state, the strip-type roughness is removed; the system evolves towards a spanwise-homogeneous statistically-steady state and the secondary motions decay. The procedure is repeated several times for each value of s to enable the calculation of the ensemble-averaged decay. https://publikationen.bibliothek.kit.edu/1000170505 application/x-tar