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pro vyhledávání: '"Ribeiro, Jean Hélder Marques"'
Resolvent analysis is a powerful tool that can reveal the linear amplification mechanisms between the forcing inputs and the response outputs about a base flow. These mechanisms can be revealed in terms of a pair of forcing and response modes and the
Externí odkaz:
http://arxiv.org/abs/2404.11789
We perform direct numerical simulations (DNS) of actively controlled laminar separated wakes around low-aspect-ratio wings with two primary goals: (i) reducing the size of the separation bubble and (ii) attenuating the wing tip vortex. Instead of pre
Externí odkaz:
http://arxiv.org/abs/2402.12553
Autor:
Neal, Jacob, Burtsev, Anton, Ribeiro, Jean Helder Marques, Taira, Kunihiko, Theofilis, Vassilios, Amitay, Michael
Experimental investigations were performed to elucidate the features of flow fields occurring over cantilevered finite-aspect ratio NACA 0015 wings at high angles of attack with various sweep angles and taper ratios. Volumetric Stereoscopic Particle
Externí odkaz:
http://arxiv.org/abs/2308.12442
Autor:
Ribeiro, Jean Hélder Marques, Neal, Jacob, Burtsev, Anton, Amitay, Michael, Theofilis, Vassilios, Taira, Kunihiko
While tapered swept wings are widely used, the influence of taper on their post-stall wake characteristics remains largely unexplored. To address this issue, we conduct an extensive study using direct numerical simulations to characterize the wing ta
Externí odkaz:
http://arxiv.org/abs/2304.07587
Through triglobal resolvent analysis, we reveal the effects of wing tip and sweep angle on laminar separated wakes over swept wings. For the present study, we consider wings with semi-aspect ratios from $1$ to $4$, sweep angles from $0^\circ$ to $45^
Externí odkaz:
http://arxiv.org/abs/2212.02009
We reveal the effects of sweep on the wake dynamics around NACA 0015 wings at high angles of attack using direct numerical simulations and resolvent analysis. The influence of sweep on the wake dynamics is considered for sweep angles from $0^\circ$ t
Externí odkaz:
http://arxiv.org/abs/2206.04718
Publikováno v:
Phys. Rev. Fluids 5, 033902 (2020)
Performing global resolvent analysis for high-Reynolds-number turbulent flow calls for the handling of a large discrete operator. Even though such large operator is required in the analysis, most applications of resolvent analysis extracts only a few
Externí odkaz:
http://arxiv.org/abs/1902.01458
Akademický článek
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Publikováno v:
Biblioteca Digital de Teses e Dissertações da Universidade Estadual de Campinas (UNICAMP)
Universidade Estadual de Campinas (UNICAMP)
instacron:UNICAMP
Universidade Estadual de Campinas (UNICAMP)
instacron:UNICAMP
Orientador: William Roberto Wolf Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Mecânica Resumo: Decomposição Ortogonal Própria é aplicada para identificar estruturas coerentes em escoamentos turbulentos so
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od______3056::4a3267a8a91e06751de1910bcd4306ba