Exploració per tema "Vortex-motion"
Ara es mostren els items 21-35 de 35
-
Relative dynamics of quantum vortices and massive cores in binary BECs
(2023-08-02)
Article
Accés obertWe study the motion of superfluid vortices with filled massive cores. Previous point-vortex models already pointed out the impact of the core mass on the vortex dynamical properties, but relied on an assumption that is ... -
Simulation of vortices induced by dielectric barrier discharge plasma actuator under burst-mode actuation
(Universitat Politècnica de Catalunya, 2020-07-20)
Treball Final de Grau
Accés obert
Realitzat a/amb: University of California, IrvineThe Dielectric Barrier Discharge (DBD) plasma actuator operating under duty-cycle actuation has been shown to provide with great flow control capabilities. As a consequence, there is a pressing need to understand the ... -
Spectral/hp element stability analysis of classical and non-classical streamwise aligned vortices
(Universitat Politècnica de Catalunya / Imperial College London, 2013)
Treball Final de Grau
Accés restringit per decisió de l'autor
Realitzat a/amb: Imperial College of LondonThe goal of this thesis is to study the stability of a vortex, which has been called the m-Shape vortex, that takes place in some Formula 1 cars. This vortex has been obtained from Computational Fluid Dynamics data. It ... -
Spinor-induced instability of kinks, holes and quantum droplets
(2022-07)
Article
Accés obertWe address the existence and stability of one-dimensional (1D) holes and kinks andtwo-dimensional (2D) vortex-holes nested in extended binary Bose mixtures, which emerge in thepresence of Lee–Huang–Yang (LHY) quantum ... -
Spiraling vortices in exciton-polariton condensates
(American Physical Society (APS), 2020-07-23)
Article
Accés obertWe introduce the phenomenon of spiraling vortices in driven-dissipative (nonequilibrium) exciton-polariton condensates excited by a nonresonant pump beam. At suitable low pump intensities, these vortices are shown to spiral ... -
Study for the numerical resolution of conservation equations of mass, momentum and energy to be applied to be applied on vortex
(Universitat Politècnica de Catalunya, 2015-06)
Treball Final de Grau
Accés restringit per decisió de l'autorThe main aim of this work is to be an introduction to the development of numerical codes for fluid dynamics and make them capable of represent real situations with academic purposes. Starting from a very basic point, the ... -
Study of feature detection methods for aerodynamics
(Universitat Politècnica de Catalunya, 2023-05-02)
Projecte Final de Màster Oficial
Accés obertThe work presented throughout this file provides a study of the methods currently available for the identification of vortex within the fluid dynamics field. Particularly, this work presents a set of routines based on the ... -
Study of the passive flow control mechanism applied to a generic (DrivAer) car
(Universitat Politècnica de Catalunya, 2021-01-17)
Treball Final de Grau
Accés obertFrom this last ten years on, the last trend of the automotive industry has been to produce daily driver cars as efficient as possible. This decision has permitted aerodynamic performance to be one of the most important ... -
Study: Study of cloud activity at the "Storm-Alley" region on Saturn
(Universitat Politècnica de Catalunya, 2022-07-18)
Treball Final de Grau
Accés obertThe objective of this thesis is to obtain experimental energy spectra for potential vorticity of the storms and clouds in the "Storm Alley" region in Saturn by using images taken by Cassini’s ISS instrument. The brightness ... -
Superfluid vortex dynamics on a torus and other toroidal surfaces of revolution
(American Physical Society (APS), 2020-05-04)
Article
Accés obertThe superfluid flow velocity is proportional to the gradient of the phase of the superfluid order parameter, leading to the quantization of circulation around a vortex core. In this work, we study the dynamics of a ... -
Superfluid vortex dynamics on planar sectors and cones
(American Physical Society (APS), 2019-06-07)
Article
Accés obertWe study the dynamics of vortices formed in a superfluid film adsorbed on the curved two-dimensional surface of a cone. To this aim, we observe that a cone can be unrolled to a sector on a plane with periodic boundary ... -
The role of vorticity in maximal swimming propulsion
(Institute of Thermomechanics, Academy of Sciences of the Czech Republic, 2013)
Text en actes de congrés
Accés obertExperimental and theoretical results on the propulsion of swimrners are presented with an emphasis on the specific characteristics of the wakes produced by the swimmers in the water. We introduce the subject revising ... -
Unidirectional guided resonances in anisotropic waveguides
(2021-05-15)
Article
Accés obertWe show that anisotropic planar anti-guiding waveguide structures with two radiation channels toward the surrounding cladding materials can support unidirectional guided resonances (UGRs), where radiation is canceled in ... -
Vortex rings impinging on permeable boundaries
(2015-01)
Article
Accés obertExperiments with vortex rings impinging permeable and solid boundaries are presented in order to investigate the influence of permeability. Utilizing Particle Image Velocimetry, we compared the behaviour of a vortex ring ... -
Wakes and instabilities of static and freely vibrating cylinders
(Springer, 2019)
Text en actes de congrés
Accés obertThe flow around static and freely vibrating cylinders are of interest in understanding different phenomena encountered in many practical applications.