This work studies the three-dimensional flow dynamics around a rotating circular cylinder of
finite length, whose axis is positioned perpendicular to the streamwise direction. Direct …

In the gap region of tandem cylinders, within the reattachment regime, bi-stability is seen to
be cellular. Direct numerical simulations at a Reynolds number of 500, and a gap ratio of …

The prediction of trajectories of buoyancy-driven objects immersed in a viscous fluid is a key
problem in fluid dynamics. Simple-shaped objects, such as disks, present a great variety of …

We have performed direct numerical simulations for the flow past a streamwise and
transversely rotating sphere at a Reynolds number Re= 500. To investigate the effect of low …

We present a detailed mathematical study of a truncated normal form relevant to the
bifurcations observed in wake flow past axisymmetric bodies, with and without thermal …

The linear and nonlinear stability of two concentric jets separated by a duct wall is analysed
by means of global linear stability and weakly nonlinear analysis. Three governing …

The Spanish Pilot Centre of ERCOFTAC composes of six members. The Center is
coordinated by Prof. Eugenio Oñate from the International Center for Numerical Methods in …

Acoustic-hydrodynamic feedbacks are a common theme in jet noise. Strong sound
emissions are supported by fluid instabilities, whose core is not necessarily localized in …

In this thesis, we study the formation of coherent structures in the early stages of transition
from a laminar state towards a chaotic attractor. We aim to unveil the rich array of dynamical …

Numerous current and future technological devices may benefit from the fundamental
understanding of the fluid instabilities leading to Vortex Induced Vibrations (VIV). Energy …