PIV Snapshot Clustering Reveals the Dual Deterministic and Chaotic Nature of Propeller Wakes at Macro- and Micro-Scales

Autor: Danny D’Agostino, Matteo Diez, Mario Felli, Andrea Serani

Publikováno v: Journal of Marine Science and Engineering, Vol 11, Iss 6, p 1220 (2023)

This study investigates the underlying mechanisms governing the evolution of tip vortices in the far field of a naval propeller wake. To achieve this, a novel approach utilizing data clustering applied to particle image velocimetry snapshots is emplo

Externí odkaz: https://doaj.org/article/f5341533e56f4c3a885a99430adf9ad8

Extra Strain Rates in an unsteady spilling breaking wave

Autor: Alessia Lucarelli, Claudio Lugni, Massimo Falchi, Mario Felli, Maurizio Brocchini

Publikováno v: Scientific Reports, Vol 8, Iss 1, Pp 1-8 (2018)

Abstract We analyze the extra strain rates that characterize a curved, thin mixing layer induced at an unsteady spilling breaker. We focus on the flow curvature, which induces some extra rates of strain that should be accounted for in algebraic-type

Externí odkaz: https://doaj.org/article/f63703b5eeb246bb98ed4b4037657e33

The hydroelastic response of a surface-piercing hydrofoil in multi-phase flows. Part 1. Passive hydroelasticity

Autor: Yin Lu Young, Steven L. Ceccio, Massimo Falchi, Casey M. Harwood, Mario Felli

Publikováno v: Journal of fluid mechanics
881 (2019): 313–364. doi:10.1017/jfm.2019.691
info:cnr-pdr/source/autori:Harwood C.M. (1); Felli M. (2); Falchi M. (2); Ceccio S.L. (3,4,5); Young Y.L. (3,4,6)/titolo:The hydroelastic response of a surface-piercing hydrofoil in multi-phase flows. Part 1. Passive hydroelasticity/doi:10.1017%2Fjfm.2019.691/rivista:Journal of fluid mechanics (Print)/anno:2019/pagina_da:313/pagina_a:364/intervallo_pagine:313–364/volume:881

Compliant lift-generating surfaces have widespread applications as marine propellers, hydrofoils and control surfaces, and the fluid–structure interactions (FSI) of such systems have important effects upon their performance and stability. Multi-pha

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5f54ed96cf1d5c4e30fe830d94932ef5
https://doi.org/10.1017/jfm.2019.691

Observing PIV Measurements Through the Lens of Data Clustering

Autor: Danny D'Agostino, Matthieu Andre, Philippe M. Bardet, Andrea Serani, Mario Felli, Matteo Diez

Publikováno v: 33rd Symposium on Naval Hydrodynamics, virtually from Osaka, Japan, 18-23/10/2020
info:cnr-pdr/source/autori:Danny D'Agostino; Matthieu Andre; Philippe M. Bardet; Andrea Serani; Mario Felli; Matteo Diez/congresso_nome:33rd Symposium on Naval Hydrodynamics/congresso_luogo:virtually from Osaka, Japan/congresso_data:18-23%2F10%2F2020/anno:2020/pagina_da:/pagina_a:/intervallo_pagine

Spatial and snapshot clustering approaches are presented and discussed for particle image velocimetry (PIV) data of high-Reynolds number uniform and buoyant jets and 4- and 7-bladed propeller wakes respectively. Data clustering is based on the k-mean

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::f840896ebf5c99436f5fd61b1475534d
https://hdl.handle.net/11573/1493230

Extra Strain Rates in an unsteady spilling breaking wave

Autor: Massimo Falchi, Mario Felli, Alessia Lucarelli, Maurizio Brocchini, Claudio Lugni

Publikováno v: Scientific Reports, Vol 8, Iss 1, Pp 1-8 (2018)
Scientific Reports
Scientific reports (Nature Publishing Group) 8 (2018). doi:10.1038/s41598-018-32307-3
info:cnr-pdr/source/autori:Lucarelli, Alessia (1); Lugni, Claudio(1,2); Falchi, Massimo(1); Felli, Mario(1); Brocchini, Maurizio(3)/titolo:Extra Strain Rates in an unsteady spilling breaking wave/doi:10.1038%2Fs41598-018-32307-3/rivista:Scientific reports (Nature Publishing Group)/anno:2018/pagina_da:/pagina_a:/intervallo_pagine:/volume:8

We analyze the extra strain rates that characterize a curved, thin mixing layer induced at an unsteady spilling breaker. We focus on the flow curvature, which induces some extra rates of strain that should be accounted for in algebraic-type turbulenc

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::afd04b1b067a716ae03ec0176028ae01
https://doaj.org/article/f63703b5eeb246bb98ed4b4037657e33