5 papers
Computational study of airfoil stall flutter Limit Cycle Oscillations
Nikos Spyropoulos, Marinos Manolesos, George Papadakis
This paper presents a comprehensive numerical investigation of a NACA0012 undergoing Stall Flutter Limit Cycle Oscillations (LCO) across distinct fluid dynamics regimes. It accurat…
Design, Testing and Numerical Modelling of a Low-Speed Wind Tunnel Gust Generator
Marinos Manolesos, Christos Ampatis, Dimitris Gkiolas +2
Understanding and accurately reproducing gust-induced unsteady aerodynamics is essential for improving load prediction, aeroelastic analysis, and control strategies in aircraft, un…
An ALE approach to reduce spurious numerical mixing through variational minimizers: application to internal waves
Andreas Alexandris-Galanopoulos, George Papadakis
Spurious numerical mixing is a frequent phenomenon in ocean models. In this paper, we present an efficient and robust methodology that defines the vertical grid motion so that this…
Parallel Nodal Interior-Penalty Discontinuous Galerkin Methods for the Subsonic Compressible Navier-Stokes Equations: Applications to Vortical Flows and VIV Problems
Spiros Zafeiris, Emmanuil H. Georgoulis, George Papadakis
We present a Discontinuous Galerkin (DG) solver for the compressible Navier-Stokes system, designed for applications of technological and industrial interest in the subsonic region…
On the low drag regime of flatback airfoils
Konstantinos Kellaris, George Papadakis, Miguel Alfonso Mendez +1
Flatback airfoils, characterized by a blunt trailing edge, are used at the root of large wind turbine blades. A low-drag pocket has recently been identified in the flow past these…