3 papers
physics.flu-dyn2025
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…
physics.flu-dyn2024
Airfoil tonal noise reduction by roughness elements Part I -- Experimental investigation
ElÃas Alva, Zhenyang Yuan, Tiago B. Araújo +3
Laminar separation bubbles around airfoils lead to the growth of instability waves, which enhances to acoustic scattering at the trailing-edge, forming a feedback loop that produce…
physics.flu-dyn2024
Airfoil Tonal Noise Reduction by Roughness Elements. Part II -- Direct Simulations
Zhenyang Yuan, ElÃas Alva, Tiago B. de Araújo +2
In a combined experimental and numerical effort we investigate airfoil tonal noise generation and reduction. The means of noise control are streak generators in form of cylindrical…