Author, as appears in the article.: Reichardt, Ignasi; Pallares, Jordi; Sales-Pardo, Marta; Guimera, Roger
Department: Enginyeria Química Enginyeria Mecànica
URV's Author/s: Guimera Manrique, Roger / Pallarés Curto, Jorge María / Pallarès Marzal, Josep / Sales Pardo, Marta
Keywords: Growth
Abstract: © 2020 American Physical Society. Ever since Nikuradse's experiments on turbulent friction in 1933, there have been theoretical attempts to describe his measurements by collapsing the data into single-variable functions. However, this approach, which is common in other areas of physics and in other fields, is limited by the lack of rigorous quantitative methods to compare alternative data collapses. Here, we address this limitation by using an unsupervised method to find analytic functions that optimally describe each of the data collapses for the Nikuradse dataset. By descaling these analytic functions, we show that a low dispersion of the scaled data does not guarantee that a data collapse is a good description of the original data. In fact, we find that, out of all the proposed data collapses, the original one proposed by Prandtl and Nikuradse over 80 years ago provides the best description of the data so far, and that it also agrees well with recent experimental data, provided that some model parameters are allowed to vary across experiments.
Thematic Areas: Química Physics, multidisciplinary Physics and astronomy (miscellaneous) Physics and astronomy (all) Physics Medicina ii Materiais Matemática / probabilidade e estatística Interdisciplinar Geociências General physics and astronomy General medicine Filosofía Farmacia Ensino Engenharias iv Engenharias iii Engenharias ii Economia Ciências biológicas ii Ciências agrárias i Ciência da computação Biotecnología Astronomia / física
licence for use: https://creativecommons.org/licenses/by/3.0/es/
ISSN: 0031-9007
Author's mail: roger.guimera@urv.cat josep.pallares@urv.cat jordi.pallares@urv.cat marta.sales@urv.cat
Author identifier: 0000-0002-3597-4310 0000-0001-7221-5383 0000-0003-0305-2714 0000-0002-8140-6525
Record's date: 2024-10-19
Journal volume: 124
Papper version: info:eu-repo/semantics/acceptedVersion
Link to the original source: https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.124.084503
Licence document URL: https://repositori.urv.cat/ca/proteccio-de-dades/
Papper original source: Physical Review Letters. 124 (8): 084503-
APA: Reichardt, Ignasi; Pallares, Jordi; Sales-Pardo, Marta; Guimera, Roger (2020). Bayesian Machine Scientist to Compare Data Collapses for the Nikuradse Dataset. Physical Review Letters, 124(8), 084503-. DOI: 10.1103/PhysRevLett.124.084503
Article's DOI: 10.1103/PhysRevLett.124.084503
Entity: Universitat Rovira i Virgili
Journal publication year: 2020
Publication Type: Journal Publications