5 papers
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…
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…
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…