β-Variational autoencoders and transformers for reduced-order modelling of fluid flows

Autor: Alberto Solera-Rico, Carlos Sanmiguel Vila, Miguel Gómez-López, Yuning Wang, Abdulrahman Almashjary, Scott T. M. Dawson, Ricardo Vinuesa

Publikováno v: Nature Communications, Vol 15, Iss 1, Pp 1-15 (2024)

Abstract Variational autoencoder architectures have the potential to develop reduced-order models for chaotic fluid flows. We propose a method for learning compact and near-orthogonal reduced-order models using a combination of a β-variational autoe

Externí odkaz: https://doaj.org/article/13bf0a4713db43a889b8792986460b71

Modal decomposition of flow fields and convective heat transfer maps: An application to wall-proximity square ribs

Autor: Marco Raiola, Carlos Sanmiguel Vila, Andrea Ianiro, Ramis Örlü, Stefano Discetti, Fermin Mallor

Publikováno v: e-Archivo: Repositorio Institucional de la Universidad Carlos III de Madrid
Universidad Carlos III de Madrid (UC3M)
e-Archivo. Repositorio Institucional de la Universidad Carlos III de Madrid
instname

In this work the modal decomposition of convective heat transfer distributions in turbulent flows is explored. The organization and thermal footprint of the turbulent flow features generated downstream of wall-proximity two-dimensional square ribs im

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c9730490f6a8ba0145a154bde8ab3e90
https://doi.org/10.1016/j.expthermflusci.2018.12.023

Revisiting History Effects in Adverse-Pressure-Gradient Turbulent Boundary Layers

Autor: Andrea Ianiro, Stefano Discetti, Ramis Örlü, Philipp Schlatter, Ricardo Vinuesa, Carlos Sanmiguel Vila

Publikováno v: Flow, Turbulence and Combustion
e-Archivo. Repositorio Institucional de la Universidad Carlos III de Madrid
instname
e-Archivo: Repositorio Institucional de la Universidad Carlos III de Madrid
Universidad Carlos III de Madrid (UC3M)

The goal of this study is to present a first step towards establishing criteria aimed at assessing whether a particular adverse-pressure-gradient (APG) turbulent boundary layer (TBL) can be considered well-behaved, i.e., whether it is independent of

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::007ad76d120c92567ffc93a5ac8e7291
http://europepmc.org/articles/PMC6044237

Large-Scale Energy in Turbulent Boundary Layers: Reynolds-Number and Pressure-Gradient Effects

Autor: Philipp Schlatter, Ramis Örlü, Stefano Discetti, Ricardo Vinuesa, Andrea Ianiro, Carlos Sanmiguel Vila

Publikováno v: Springer Proceedings in Physics ISBN: 9783030221959

Adverse-pressure-gradient (APG) turbulent boundary layers (TBLs) are studied using hot-wire measurements which cover a Clauser pressure-gradient-parameter range up to \(\beta \approx 2.4\). Constant and non-constant \(\beta \) distributions with the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6d4e67d3488bc8aaa61921fd61ba705f
https://doi.org/10.1007/978-3-030-22196-6_11

Identifying Well-Behaved Turbulent Boundary Layers

Autor: Ramis Örlü, Ricardo Vinuesa, Carlos Sanmiguel Vila, Stefano Discetti, Philipp Schlatter, Andrea Ianiro

Publikováno v: Springer Proceedings in Physics ISBN: 9783319579337

This paper presents a study focused on the development of zero-pressure-gradient turbulent boundary layers (ZPG TBL) towards well-behaved conditions in the low Reynolds-number range. A new method to assess the length required for the ZPG TBL to exhib

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ceb2215823bc5eb7fc5a304c15e1f53c
https://doi.org/10.1007/978-3-319-57934-4_10