Exploració per autor "Redondo Apraiz, José Manuel"

Ara es mostren els items 62-81 de 81

    • SAR Analysis of the ocean surface : aplication to the NW mediterranean marine pollution and dynamic features 

      Redondo Apraiz, José Manuel; Platonov, A.; Grau Barceló, Joan (Tempus Publications, 2009)
      Text en actes de congrés
      Accés obert
      The interaction between multiple scales in nature and mainly in turbulent flows produces fractals or multifractal structures. We use multi-fractal analysis to investigate the scales and influence of stratification in ...

    • SAR measurements of coastal features in the NW Mediterranean 

      Redondo Apraiz, José Manuel; Martínez Benjamín, Juan José; Díez Rilova, Margarita; Lopez Gonzalez-Nieto, Pilar (2013)
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    • Sediment and plankton lift off recirculations in strong synthetic turbulence (KS) 

      Redondo Apraiz, José Manuel; Castilla López, Roberto; Sekula, Emil; Furmanek, Petr (2014)
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      The study of particle diffusion and of turbulent sedimentation is of great importance in many geophysical fields, such as in Environmental Science or Oceanography as well as in Bio-environmental and industrial processes. ...

    • Simulation of turbulence mixing in the atmosphere boundary layer and analysis of fractal dimension 

      Tellez Alvarez, Jackson David; Koshelev, K; Strijhak, Sergei; Redondo Apraiz, José Manuel (2019-06)
      Article
      Accés obert
      In the first part of this paper, a flow model for numerical simulation of turbulent parameters in atmospheric boundary layer (ABL), based on finite volume method and large-eddy simulation is introduced. This model consists ...

    • Structure of 3D turbulent wall jets: acoustic doppler velocity measurements 

      Sekula, Emil; Redondo Apraiz, José Manuel (Atenea. Campus digital UPC, 2009)
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      Accés restringit per política de l'editorial
      The main aim of this research is to understand and describe key aspects of the structure of turbulent jets and plumes and their interaction with coherent structures together with the effects connected with them (for example ...

    • Surface Flow Image Velocimetry (SFIV) for hydraulics applications 

      Tellez Alvarez, Jackson David; Gómez Valentín, Manuel; Russo, Beniamino; Redondo Apraiz, José Manuel (2016)
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      Surface Flow Image Velocimetry (SFIV), is a practical extension of Particle Image Velocimetry (PIV), as one of the major effective techniques in hydraulics providing velocity and vorticity fields in fast flow laboratory ...

    • Swimming propulsion due to vortices 

      Redondo Apraiz, José Manuel; Arellano, Raul; Carrillo Cortés, José Alejandro; Matulka, Annia; Ben Mahjoub, Otman; Sekula, Emil (Institute of Thermomechanics, Academy of Sciences of the Czech Republic, 2012-02-15)
      Capítol de llibre
      Accés restringit per política de l'editorial

    • Technique for visualization of complex fluxes 

      Tellez Alvarez, Jackson David; Gómez Valentín, Manuel; Russo, Beniamino; Redondo Apraiz, José Manuel (Print Pro, 2016)
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      We present a new technique of turbulence analysis in fast flowing flows such as those encountered in hydraulic applications. Surface Flow image velocimetry (SFIV) allows to measure complex surface velocity fields in ...

    • The role of initial conditions on mixing efficiency for convective flows 

      Lopez Gonzalez-Nieto, Pilar; Yagüe, Carlos; Cano Marchante, Jose Leandro; Redondo Apraiz, José Manuel (2004-07-24)
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      Mixing produced in convective flows is investigated comparing three different experiments performed by the authors using brine and fresh water as the two mixing fluids. The initial instabilities are generated by gravitational ...

    • The role of vorticity in maximal swimming propulsion 

      Redondo Apraiz, José Manuel; Arellano, Raul; Carrillo Cortés, José Alejandro; Terrés Nicoli, José María (Institute of Thermomechanics, Academy of Sciences of the Czech Republic, 2013)
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      Experimental 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 ...

    • The structure of rotating stratified flows 

      Redondo Apraiz, José Manuel (2010)
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    • Thermocapilarity and radiative heat flux oscillations 

      Redondo Apraiz, José Manuel; Lopez Gonzalez-Nieto, Pilar; Mahjoub, Otman; Ryazantsev, Yuri S.; Garcia Velarde, Manuel (2014)
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      We present a detailled experimental study of the thermocapillary motion of an aniline drop in an stably stratified fluid sytem driven by a laser beam. The thermocapillary motion of drops is the result of the temperature ...

    • Topics in environmental and physical geodesy 

      Redondo Apraiz, José Manuel (Universitat Politècnica de Catalunya. Departament de Física Aplicada (FA), 2014-11-01)
      Llibre
      Accés obert
      A compilation of mathematical techniques and physical basic knowledge in order to prepare the post graduate students of the subjects of physical geodesy, environmental physics and the visiting students of Erasmus-Socrates ...

    • Turbulence behind 3D multi-scale sparse grids 

      Usama, Syed; Tellez Alvarez, Jackson David; Kopec, Jasek; Kwiatkowski, Kamil; Redondo Apraiz, José Manuel; Malik, Nadeem (Institute of Physics (IOP), 2018)
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      A fundamentally new idea in grid generated turbulence is the 3D Sparse Grid (3DS) concept [N. A. Malik. Sparse 3D Multi-Scale Grid Turbulence Generator. US Patent No. US 9,599,269 B2 (2017)] which reduces the effective ...

    • Turbulence structure of the atmospheric boundary layer in stable conditions 

      Rodríguez Cantalapiedra, Inma; Redondo Apraiz, José Manuel (2007)
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      A partir de las mediciones de velocidad del aire, temperatura y humedad realizadas en la atmósfera en horario nocturno, se ha analizado la influencia de la estabilidad atmosférica en los flujos de momento y temperatura.

    • Turbulence, entropy and dynamics : lecture notes 

      Redondo Apraiz, José Manuel (2014-11-01)
      Llibre
      Accés obert
      This Lecture notes are designed to complement the class notes of the course Turbulence and Mixing and Ocean Turbulence prsented at UPC, Toulon University and the Campus Universitary de la Mediterrania since 2010. It draws ...

    • Turbulent convection by thermoelectricity in a cooling-heating didactive device 

      Redondo Apraiz, José Manuel; Tellez Alvarez, Jackson David; Sanchez, Jesus Mary (Moscow Institute of Physics and Technology (MIPT), 2017-04)
      Article
      Accés obert
      Local Diffusion and the topological structure of vorticity and velocity fields is measured in the transition from a homogeneous linearly stratified fluid to a cellular or layered structure by means of convective cooling ...

    • Turbulent diffusion and mixing in non-homogeneous environments 

      Redondo Apraiz, José Manuel; Díez Rilova, Margarita; Sekula, Emil; Mahjoub, Otman (2012)
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      Many experimental and field studies have been devoted to the understanding of non-homogeneous turbulent dynamics. Activity in this area intensified when the basic Kolmogorov self-similar theory was extended to two-dimensional or ...

    • Vortex decay in stratified flows 

      Redondo Apraiz, José Manuel; Matulka, Anna Magdalena; Carrillo Cortés, José Alejandro (2010)
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      Accés restringit per política de l'editorial

    • Vorticity and Prandtl number dependence on rotating stratified experiments 

      Redondo Apraiz, José Manuel (2015-12-10)
      Report de recerca
      Accés obert
      In the Edited paper, a turbulent ocean is modelled in the laboratory. The rotation of the Earth around its axis is represented by the rotation of a turntable. Similar to that in the Earth's ocean, the currents in the laboratory