Exploració per tema "Turbulència atmosfèrica"
Ara es mostren els items 21-36 de 36
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Generation of atmospheric turbulence in a wind tunnel
(Universitat Politècnica de Catalunya, 2017-10-05)
Treball Final de Grau
Accés obertThis report aims to contribute to the knowledge and characterization of grid generated turbulence in a wind tunnel. It starts with a theory introduction to turbulence where we bring together the classic approaches ... -
Generation of atmospheric wavefronts using binary micro-mirror arrays
(Optical Society of American (OSA), 2016-06-27)
Article
Accés obertTo simulate in the laboratory the influence that a turbulent atmosphere has on light beams, we introduce a practical method for generating atmospheric wavefront distortions that considers digital holographic reconstruction ... -
Generation of atmospheric wavefronts using binary micromirror arrays
(2016-04-10)
Article
Accés obertTo simulate in the laboratory the influence that a turbulent atmosphere has on light beams, we introduce a practical method for generating atmospheric wavefront distortions that considers digital holographic reconstruction ... -
Global intermittency and collapsing turbulence in a stratified planetary boundary layer
(2014-07-19)
Article
Accés obert -
Gradient trajectory analysis of a scalar field with external intermittency
(2009-05-10)
Article
Accés obertThe passive scalar field of a temporally evolving shear layer is investigated using gradient trajectories as a means to analyse the scalar probability density function and the conditional scalar dissipation rate in the ... -
Mezcla turbulenta por rejilla oscilante : nuevos experimentos y técnicas de alta resolución
(2015-07-05)
Report de recerca
Accés obertWe present several experimental studies on Turbulent Mixing produced by the advance of a density interface produced by brine when an oscilating grid produces zero-mean turbulence at a certain vertical distance. The older ... -
Ocean classification of dynamical structures detected by SAR and spectral methods
(European Space Agency (ESA), 2016)
Text en actes de congrés
Accés obertWe discuss a taxonomy of different dynamical featuresin the ocean surface and provide some eddy and frontstatistics, as well as describing some events detected byseveral satellites and even with additional cruise observationsand ... -
Probability density functions in the cloud-top mixing layer
(2010-08-19)
Article
Accés obertThe cloud-top mixing layer is an idealized configuration often employed in the literature to study local aspects (over length scales of the order of 10 m) of the top of stratocumulus-topped mixed layers. Latent heat effects ... -
Project design third axis of paragliding simulator
(Universitat Politècnica de Catalunya / Universidade de Fortaleza, 2014)
Projecte/Treball Final de Carrera
Accés obert
Realitzat a/amb: Universidade de FortalezaParagliding accidents are often caused by unpredictable weather conditions that may produce air turbulence. Air turbulence is equally dangerous to both experienced and inexperienced pilots alike, as it is invisible and can ... -
Proof of concept for adaptive sequential optimization of free-space communication receivers
(Optical Society of American (OSA), 2019-07-05)
Article
Accés obertIn a downlink scenario, the performance of laser satellite communications is limited due to atmospheric turbu- lence, which causes fluctuations in the intensity and the phase of the received signal, leading to an increase ... -
Reconstruction subgrid models for nonpremixed combustion
(2003-09-16)
Article
Accés obertLarge-eddy simulation of combustion problems involves highly nonlinear terms that, when filtered, result in a contribution from subgrid fluctuations of scalars, Z, to the dynamics of the filtered value. This subgrid ... -
Simulating atmospheric turbulence: Code development and educational applications
(Universitat Politècnica de Catalunya, 2022-04-29)
Comunicació de congrés
Accés obertEarth atmosphere turbulence affects many areas of interest related with Space studies, such as optical communications or Astronomy. In fact, it is a key topic for such applications and, thus, it is important for students ... -
The Effect of Partial Premixing and Heat Loss on the Reacting Flow Field Prediction of a Swirl Stabilized Gas Turbine Model Combustor
(Springer Verlag, 2018-03)
Article
Accés obertThis work addresses the prediction of the reacting flow field in a swirl stabilized gas turbine model combustor using large-eddy simulation. The modeling of the combustion chemistry is based on laminar premixed flamelets ... -
Two applications for teaching and Telecommunication Engineering students the atmospheric effects on the optical channels. Applications in Astronomy, Mechanical Engineering and Telecommunications
(Universitat Politècnica de Catalunya, 2022-09)
Text en actes de congrés
Accés obertAtmospheric turbulence is one of the limiting phenomena in interesting applications and fields such of optical telecommunications and Observational Astronomy. Both Telecommunication and Aerospace Engineering students may ... -
Two applications for teaching Telecommunication Engineering students the atmospheric effects on the optical channels. Applications in Astronomy, Mechanical Engineering and Telecommunications
(Universitat Politècnica de Catalunya (UPC), 2022)
Comunicació de congrés
Accés obertAtmospheric turbulence is one of the limiting phenomena in interesting applications and fields such of optical telecommunications and Observational Astronomy. Both Telecommunication and Aerospace Engineering students may ... -
Wind effects on fluctuations of the received power in FSO Communications due to atmospheric turbulence
(Universitat Politècnica de Catalunya, 2018-06)
Treball Final de Grau
Accés restringit per acord de confidencialitat