Zobrazeno 1 - 10
of 156
pro vyhledávání: '"Oriol Lehmkuhl"'
Publikováno v:
Mathematics, Vol 12, Iss 7, p 998 (2024)
This study introduces a deep learning surrogate model designed to predict the evolution of the mean pressure coefficient on the back face of a Windsor body across a range of yaw angles from 2.5∘ to 10∘. Utilizing a variational autoencoder (VAE),
Externí odkaz:
https://doaj.org/article/3e9a9e43767844eda6f0f6503ee9d6da
Publikováno v:
Fluids, Vol 8, Iss 8, p 236 (2023)
The noise radiated by the flow around a cylinder in the subcritical regime at ReD=1×104 and at a subsonic Mach number of M=0.5 is here studied. The aerodynamic sound radiated by a cylinder has been studied with a wide range of Reynolds numbers, but
Externí odkaz:
https://doaj.org/article/4d05e929d1ab4e418815708164e180ca
Autor:
Pau Varela, Pol Suárez, Francisco Alcántara-Ávila, Arnau Miró, Jean Rabault, Bernat Font, Luis Miguel García-Cuevas, Oriol Lehmkuhl, Ricardo Vinuesa
Publikováno v:
Actuators, Vol 11, Iss 12, p 359 (2022)
The increase in emissions associated with aviation requires deeper research into novel sensing and flow-control strategies to obtain improved aerodynamic performances. In this context, data-driven methods are suitable for exploring new approaches to
Externí odkaz:
https://doaj.org/article/1418dff210a04802a9a9a426de344d67
Publikováno v:
Fluids, Vol 7, Iss 9, p 292 (2022)
The coherent structures and wake dynamics of a two-degree-of-freedom vibrating cylinder with a low mass ratio at Re=5300 are investigated by means of proper orthogonal decomposition (POD) of a numerical database generated using large-eddy simulations
Externí odkaz:
https://doaj.org/article/920a31fa13dc4823906752155562297e
Publikováno v:
Flow, Vol 1 (2021)
While there have been numerous applications of large eddy simulations (LES) to complex flows, their application to practical engineering configurations, such as full aircraft models, have been limited to date. Recently, however, advances in rapid, hi
Externí odkaz:
https://doaj.org/article/7778cba92f194d62bbf3f00b08842bd6
Publikováno v:
Fluids, Vol 7, Iss 2, p 62 (2022)
In this review, we summarize existing trends of flow control used to improve the aerodynamic efficiency of wings. We first discuss active methods to control turbulence, starting with flat-plate geometries and building towards the more complicated flo
Externí odkaz:
https://doaj.org/article/10aecbe109bb43048e933a13760da146
Autor:
Ivette Rodriguez, Oriol Lehmkuhl
Publikováno v:
Fluids, Vol 6, Iss 11, p 396 (2021)
The flow topology of the wake behind a circular cylinder at the super-critical Reynolds number of Re=7.2×105 is investigated by means of large eddy simulations. In spite of the many research works on circular cylinders, there are no studies concerni
Externí odkaz:
https://doaj.org/article/23540ad7259f4424bfb2f655b13e8a85
Autor:
Hadrien Calmet, Kiao Inthavong, Beatriz Eguzkitza, Oriol Lehmkuhl, Guillaume Houzeaux, Mariano Vázquez
Publikováno v:
PLoS ONE, Vol 14, Iss 9, p e0221330 (2019)
Deposition of polydisperse particles representing nasal spray application in a human nasal cavity was performed under transient breathing profiles of sniffing, constant flow, and breath hold. The LES turbulence model was used to describe the fluid ph
Externí odkaz:
https://doaj.org/article/17d1ec45d54a404cac058ba218703f32
Autor:
Federica Sacco, Bruno Paun, Oriol Lehmkuhl, Tinen L. Iles, Paul A. Iaizzo, Guillaume Houzeaux, Mariano Vázquez, Constantine Butakoff, Jazmin Aguado-Sierra
Publikováno v:
Frontiers in Physiology, Vol 9 (2018)
The aim of the present study is to characterize the hemodynamics of left ventricular (LV) geometries to examine the impact of trabeculae and papillary muscles (PMs) on blood flow using high performance computing (HPC). Five pairs of detailed and smoo
Externí odkaz:
https://doaj.org/article/ca98f39a79f64a05af5ae327c0a82dc2
Publikováno v:
AIAA Journal. 61:2035-2047
In this study we consider the flow over airfoils with leading-edge roughness, designed to mimic the ice depositions that may occur on an aircraft in flight. The focus of this investigation is the effect of the angle of attack on the mean-flow three-d