67 citations · 342 across the 12 of their papers we have counts for
8 papers · 1 filter
On the thinnest steady threads obtained by gravitational stretching of capillary jets
Mariano Rubio-Rubio, Alejandro Sevilla, José Manuel Gordillo
Experiments and global linear stability analysis are used to obtain the critical flow rate below which the highly stretched capillary jet generated when a Newtonian liquid issues f…
Vortex shedding in high-Reynolds-number axisymmetric bluff-body wakes: local linear instability and global bleed control
Alejandro Sevilla, Carlos Martínez-Bazán
We study the large-scale helical vortex shedding regime in the wake of an axisymmetric body with a blunt trailing edge at high Reynolds numbers, both experimentally and by means of…
Transition from bubbling to jetting in a co-axial air-water jet
A. Sevilla, J. M. Gordillo, C. Martínez-Bazán
In this Brief Communication we study experimentally the flow regimes that appear in co-axial air-water jets discharging into a stagnant air atmosphere and we propose a simple expla…
Diffusion-flame flickering as a hydrodynamic global mode
D. Moreno-Boza, W. Coenen, A. Sevilla +3
The present study employs a linear global stability analysis to investigate buoyancy-induced flickering of axisymmetric laminar jet diffusion flames as a hydrodynamic global mode.…
The effect of viscous relaxation on the spatiotemporal stability of capillary jets
Alejandro Sevilla
The linear spatiotemporal stability properties of axisymmetric laminar capillary jets with fully developed initial velocity profiles are studied for large values of both the Reynol…
Bubble formation regimes in forced co-axial air-water jets
J. Ruiz-Rus, R. Bolaños-Jiménez, A. Sevilla +1
We report a detailed experimental characterization of the periodic bubbling regimes that take place in an axisymmetric air-water jet when the inner air stream is forced by periodic…
Universal Thinning of Liquid Filaments under Dominant Surface Forces
Alejandro Martínez-Calvo, Alejandro Sevilla
Theory and numerical simulations of the thinning of liquid threads at high superficial concentration of surfactants suggest the existence of an asymptotic regime where surface tens…
Start-up flow in shallow deformable microchannels
A. Martínez-Calvo, A. Sevilla, G. G. Peng +1
Microfluidic systems are usually fabricated with soft materials that deform due to the fluid stresses. Recent experimental and theoretical studies on the steady flow in shallow def…