6 papers
State estimation of Rayleigh-Bénard convection with reduced-order models
Enrique Flores-Montoya, André F. C. da Silva, André V. G. Cavalieri
In this work, we develop a state estimation framework for two-dimensional Rayleigh-Bénard (RB) convection that combines a stable Galerkin reduced-order model (ROM) with an extende…
Galerkin reduced order model for two-dimensional Rayleigh-Bénard convection
Enrique Flores-Montoya, André V. G. Cavalieri
In this work, Galerkin projection is used to build reduced-order models (ROM) for two-dimensional Rayleigh-Bénard (RB) convection with no-slip walls. We compare an uncoupled proje…
Coherent structures in axis-switching elliptical jets
Naia Suzuki, André V. G. Cavalieri, Daniel M. Edgington-Mitchell +1
Coherent structures in aspect ratio 2, axis-switching elliptical jets are studied using direct numerical simulation (DNS). Three different datasets are studied with varying near-no…
On the applicability of the actuator line method for unsteady aerodynamics
ElÃas Alva, Vitor G. Kleine, André V. G. Cavalieri
A linear theory for unsteady aerodynamic effects of the actuator line method (ALM) was developed. This theory is validated using two-dimensional ALM simulations, where we compute t…
Identification of structures driving trailing-edge noise. Part II -- Numerical investigation
Zhenyang Yuan, Simon Demange, Kilian Oberleithner +2
The aim of the present work is to investigate the mechanisms of broadband trailing-edge noise generation to improve prediction tools and control strategies. We focus on a NACA 0012…
Identification of structures driving trailing-edge noise. Part I -- Experimental investigation
Simon Demange, Zhenyang Yuan, Simon Jekosch +4
Trailing-edge (TE) noise is the main contributor to the acoustic signature of flows over airfoils. It originates from the interaction of turbulent structures in the airfoil boundar…