Search Results - "Maia, Igor A"
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Modal-based generalised quasilinear approximations for turbulent plane Couette flow
Published in Theoretical and computational fluid dynamics (01-06-2024)“…We study generalised quasilinear (GQL) approximations applied to turbulent plane Couette flow. The GQL framework is explored in conjunction with a Galerkin…”
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2
Development, validation and application of a newly developed rig facility for investigation of jet aeroacoustics
Published in Journal of the Brazilian Society of Mechanical Sciences and Engineering (01-04-2018)“…Over the last decades, significant improvements have been achieved in terms of noise reduction for jet engine aircraft. Nevertheless, jet noise remains one of…”
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3
Application of spectral proper orthogonal decomposition and resolvent analysis to periodically forced supersonic jets
Published in The Journal of the Acoustical Society of America (01-10-2021)“…The mechanisms by which near-nozzle forcing alters the turbulence structure and far-field sound of turbulent jets are not well understood. We perform…”
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4
Turbulence suppression in plane Couette flow using reduced-order models
Published 30-09-2024“…We explore a reduced-order model (ROM) of plane Couette flow with a view to performing turbulence control. The ROM is derived through Galerkin projections of…”
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5
Tones and upstream-travelling waves in ideally-expanded round impinging jets
Published 19-02-2024“…We study the generation of tones by ideally-expanded round jets impinging on a flat plate. Data from large-eddy simulations performed for different…”
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6
Modal-based generalised quasilinear approximations for turbulent plane Couette flow
Published 24-11-2023“…We study generalised quasilinear (GQL) approximations applied to turbulent plane Couette flow. The GQL framework is explored in conjunction with a Galerkin…”
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7
The effect of a flight stream on subsonic turbulent jets
Published 16-08-2022“…This study concerns a turbulent jet at Mach number $M_j=0.9$, subject to a uniform external flow stream at $M_f=0.15$. We assess the mechanisms that underpin…”
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8
Reactive experimental control of turbulent jets
Published 16-02-2024“…We present an experimental study of reactive control of turbulent jets. We target axisymmetric disturbances associated with coherent structures, which are…”
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The effect of flight on a turbulent jet: coherent structure eduction and resolvent analysis
Published 08-11-2023“…We study coherent structures in subsonic turbulent jets subject to a flight stream. A thorough characterisation of the effects of a flight stream on the…”
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10
Wave cancellation in jets with laminar and turbulent boundary layers: the effect of nonlinearity
Published 29-11-2021“…This paper presents a study on wave cancellation in forced jets. Building on recent work on real-time control of forced turbulent jets [1,2], we here assess…”
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11
Closed-loop control of forced turbulent jets
Published 19-09-2020“…Closed-loop control of turbulent flows is a challenging problem with important practical and fundamental implications. We perform closed-loop control of…”
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12
Wavepacket Modelling of Broadband Shock-Associated Noise in Supersonic Jets
Published 09-12-2020“…We present a two-point model to investigate the underlying source mechanisms for broadband shock-associated noise (BBSAN) in shock-containing supersonic jets…”
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