31 citations · 45 across the 5 of their papers we have counts for
7 papers · 1 filter
Reconstruction of irregular flow dynamics around two square cylinders from sparse measurements using a data-driven algorithm
Flavio Savarino, George Papadakis
We propose a data-driven algorithm for reconstructing the irregular, chaotic flow dynamics around two side-by-side square cylinders from sparse, time-resolved, velocity measurement…
On the structure of Vorticity and Turbulence Fields in a separated flow around a finite wing; analysis using Direct Numerical Simulation
Juan Carlos Bilbao-Ludena, George Papadakis
We investigate the spatial distributions and production mechanisms of vorticity and turbulent kinetic energy around a finite NACA 0018 wing with square wingtip profile at $Re_c=10^…
The role of Coherent Structures and Inhomogeneity in Near-Field Inter-Scale Turbulent Energy Transfers
F. Alves Portela, G. Papadakis, J. C. Vassilicos
We use DNS to study inter-scale and inter-space energy exchanges in the near-field of a turbulent wake of a square prism in terms of the KHMH equation written for a triple decompos…
A data-based, reduced-order, dynamic estimator for reconstruction of non-linear flows exhibiting limit-cycle oscillations
Juan Guzmán-Iñigo, Markus Sodar, George Papadakis
We apply a data-based, linear dynamic estimator to reconstruct the velocity field from measurements at a single sensor point in the wake of an aerofoil. In particular, we consider…
Wave propagation in stenotic vessels; theoretical analysis and comparison between 3D and 1D fluid-structure-interaction models
George Papadakis, Jean Raspaud
Using analytical expressions for the pressure and velocity waveforms in tapered vessels, we construct a linear 1D model for wave propagation in stenotic vessels in the frequency do…
Nonlinear optimal control of bypass transition using a receding horizon approach
Dandan Xiao, George Papadakis
We consider the nonlinear optimal control of bypass transition in a boundary layer flow subjected to a pair of free stream vortical perturbations using a receding horizon approach.…