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Induced periodicity in wakes
KTH, School of Engineering Sciences (SCI), Engineering Mechanics, Fluid Mechanics. Department of Energy & Process Engineering, Norwegian University of Science & Technology, NO-7491, Trondheim, Norway. (FLOW)ORCID iD: 0000-0002-3787-3118
Department of Energy & Process Engineering, Norwegian University of Science & Technology, NO-7491, Trondheim, Norway.ORCID iD: 0000-0003-1381-9165
Department of Energy & Process Engineering, Norwegian University of Science & Technology, NO-7491, Trondheim, Norway.ORCID iD: 0000-0003-2002-8644
2025 (English)In: Journal of Fluid Mechanics, ISSN 0022-1120, E-ISSN 1469-7645, Vol. 1022, article id R3Article in journal (Refereed) Published
Abstract [en]

Wakes and the dynamic interactions of multiple wakes have been a focal point of numerous research endeavours. Traditionally, wake interaction studies have focused on wakes produced by similar bodies. In contrast, the present study positions a non-shedding porous disc adjacent to periodically shedding solid discs of varying diameters and dimensional shedding frequencies. Using hot-wire measurements, we explore the intriguing interaction between these wakes. Remarkably, our findings reveal that the wake of the non-shedding disc acquires oscillations from the wake of the shedding disc, irrespective of their distinct frequencies. We demonstrate high receptivity of the porous disc’s wake and connect our findings to real-life applications.

Place, publisher, year, edition, pages
Cambridge University Press (CUP) , 2025. Vol. 1022, article id R3
National Category
Fluid Mechanics
Identifiers
URN: urn:nbn:se:kth:diva-373491DOI: 10.1017/jfm.2025.10799ISI: 001608444500001Scopus ID: 2-s2.0-105021033979OAI: oai:DiVA.org:kth-373491DiVA, id: diva2:2017776
Note

QC 20251219

Available from: 2025-12-01 Created: 2025-12-01 Last updated: 2025-12-19Bibliographically approved

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Neunaber, Ingrid

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