Exploració per autor "Marqués Truyol, Francisco"
Ara es mostren els items 26-45 de 47
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Mode competition in cylindrical flows driven by sidewall oscillations
Panadès Guinart, Carles; Marqués Truyol, Francisco; Meseguer Serrano, Álvaro (2013-04)
Article
Accés obertThe transition from a two-dimensional to three-dimensional flow in systems with spatial O(2) symmetry and spatiotemporal Z2 symmetry happens in many fluid systems, like wakes or periodically forced flows. In most of these ... -
Momento de inercia
Sanz, Clara; Marqués Truyol, Francisco; Calvete Manrique, Daniel (2018-07-04)
Audiovisual
Accés obertEste vídeo forma parte del MOOC "El lenguaje de la Ingeniería". Módulo de Física. -
Nonlinear and detuning effects of the nutation angle in precessionally-forced rotating cylinder flow
Lopez Moscat, Juan Manuel; Marqués Truyol, Francisco (2016-06-16)
Article
Accés obertThe flow in a rapidly rotating cylinder forced to precess through a nutation angle a is investigated numerically, keeping all parameters constant except a, and tuned to a triadic resonance at a = 1º. When increasing a, ... -
Optimal harmonic response in a confined Bödewadt boundary layer flow
Younghae, Do; Lopez, Juan M.; Marqués Truyol, Francisco (2010-09-01)
Article
Accés obertThe Bödewadt boundary layer flow on the stationary bottom end wall of a finite rotating cylinder is very sensitive to perturbations and noise. Axisymmetric radial waves propagating inward have been observed experimentally ... -
Phase-locking flows between orthogonally stretching parallel plates
Wang, Baoying; Ayats López, Roger; Meseguer Serrano, Álvaro; Marqués Truyol, Francisco (2022-11-04)
Article
Accés obertIn this paper, we explore the stability and dynamical relevance of a wide variety of steady, time-periodic, quasiperiodic, and chaotic flows arising between orthogonally stretching parallel plates. We first explore the ... -
Pinning of rotating waves to defects in finite Taylor-Couette flow
Pacheco, J. R.; López, J. M.; Marqués Truyol, Francisco (2011-01-10)
Article
Accés obertExperiments in small aspect-ratio Taylor–Couette flows have reported the presence of a band in parameter space where rotating waves become steady non-axisymmetric solutions (a pinning effect) via infinite-period bifurcations. ... -
Precession of a rapidly rotating cylinder flow: traverse through resonance
Marqués Truyol, Francisco; López Moscat, Juan Manuel (2015-10-06)
Article
Accés restringit per política de l'editorialRecent experiments using a rapidly rotating and precessing cylinder have shown that for specific values of the precession rate, aspect ratio and tilt angle, sudden catastrophic transitions to turbulence occur. Even if the ... -
Prediction of image partitions using Fourier descriptors: application to segmentation-based coding schemes
Marqués Truyol, Francisco; Gasull Llampallas, Antoni (1998-04)
Article
Accés obertThis paper presents a prediction technique for partition sequences. It uses a region-by-region approach that consists of four steps: region parameterization, region prediction, region ordering, and partition creation. The ... -
Rapidly rotating cylinder flow with an oscillating sidewall
López Moscat, Juan Manuel; Marqués Truyol, Francisco (2014-02-17)
Article
Accés obertWe present numerical simulations of a flow in a rapidly rotating cylinder subjected to a time-periodic forcing via axial oscillations of the sidewall. When the axial oscillation frequency is less than twice the rotation ... -
Rapidly rotating precessing cylinder flows: forced triadic resonances
Lopez Moscat, Juan Manuel; Marqués Truyol, Francisco (2018-03-25)
Article
Accés restringit per política de l'editorialRapidly rotating cylinder flows subjected to low-amplitude precessional forcing are studied numerically over a range of cylinder and precessional rotation rates. For sufficiently small rotation rates, viscous effects lead ... -
Shear instabilities in Taylor-Couette flow
Meseguer Serrano, Álvaro; Mellibovsky Elstein, Fernando; Marqués Truyol, Francisco; Àvila Cañellas, Marc (Springer, 2009-09-09)
Comunicació de congrés
Accés restringit per política de l'editorialSubcritical instabilities in small gap Taylor-Couette (TCF) problem are studied numerically when both cylinders rotate in opposite directions. The computations are carried out for a radius ratio A first exploration is ... -
Small aspect ratio Taylor-Couette flow: onset of a very-low-frequency three-torus state
López Moscat, Juan Manuel; Marqués Truyol, Francisco (2003-09-03)
Article
Accés obertThe nonlinear dynamics of Taylor-Couette flow in a small aspect ratio annulus (where the length of the cylinders is half of the annular gap between them) is investigated by numerically solving the full three-dimensional ... -
Spiral vortices between concentric cylinders
Sánchez Umbría, Juan; Crespo Artiaga, Daniel; Marqués Truyol, Francisco (1993-06-01)
Article
Accés restringit per política de l'editorialSpiral vortices appearing in Couette- Taylor flows are studied by means of numerical simulation. Transition curves from Couctte to spiral vortices for different radius ratios and wavenumbers have been calculated in order ... -
Spontaneous generation of a swirling plume in a stratified ambient
Marqués Truyol, Francisco; López Moscat, Juan Manuel (2014-12-01)
Article
Accés restringit per política de l'editorialThe transition from laminar to complex spatio-temporal dynamics of plumes due to a localized buoyancy source is studied numerically. Several experiments have reported that this transition is sensitive to external perturbations. ... -
Stably stratified Taylor-Couette flows
López Alonso, José Manuel; Lopez, Juan M; Marqués Truyol, Francisco (2023-05-01)
Article
Accés obertStably stratified Taylor–Couette flow has attracted much attention due to its relevance as a canonical example of the interplay among rotation, stable stratification, shear and container boundaries, as well as its potential ... -
Stratified Taylor-Couette flow: nonlinear dynamics
López Soler, Juan M.; Marqués Truyol, Francisco (2022-01-10)
Article
Accés obertA series of experiments on stratified Taylor–Couette flow in short aspect ratio wide-gap annuli found an intriguing and not-well-understood dynamics: nonlinear coherent structures appearing and disappearing periodically, ... -
Symmetry-breaking Hopf bifurcations to 1-, 2-, and 3-tori in small-aspect-ratio counter- rotating Taylor-Couette flow
Altmeyer, Sebastian Andreas; López, J.M; Marqués Truyol, Francisco; Do, Younghae (2013)
Comunicació de congrés
Accés obert -
Symmetry-breaking Hopf bifurcations to 1-, 2-, and 3-tori in small-aspect-ratio counter-rotating Taylor-Couette flow
Altmeyer, Sebastian Andreas; López, J.M; Marqués Truyol, Francisco; Do, Younghae (2013)
Text en actes de congrés
Accés obert -
Three-dimensional instabilities in a discretely heated annular flow: onset of spatio-temporal complexity via defect dynamics
Marqués Truyol, Francisco; Lopez, Juan M (2014-06-10)
Article
Accés obertThe transition to three-dimensional and unsteady flow in an annulus with a discrete heat source on the inner cylinder is studied numerically. For large applied heat flux through the heater (large Grashof number Gr), there ... -
Transitions to three-dimensional flows in a cylinder driven by oscillations of the sidewall
Panadès Guinart, Carles; Marqués Truyol, Francisco; Lopez, Juan M. (2011-08)
Article
Accés obertThe transition from two-dimensional to three-dimensional flows in a finite circular cylinder driven by an axially oscillating sidewall is explored in detail. The complete symmetry group of this flow, including a ...