Ara es mostren els items 56-75 de 81

    • Rayleigh–Taylor mixing analysis and intermittency 

      Redondo Apraiz, José Manuel (2017)
      Text en actes de congrés
      Accés obert
    • Relationship between intermittency and stratification 

      Vindel, Jose M.; Yagüe, Carlos; Redondo Apraiz, José Manuel (2009-04-09)
      Article
      Accés restringit per política de l'editorial
      A formal analogy exists between 2D turbulence and 3D turbulence with stratification and rotation. Although the effect of the rotation, to the scale typical of the turbulence, is negligible in the atmosphere, we have found ...
    • Richmyer-Meshkov and Rayleigh-Taylor turbulent mixing fronts and instabilities 

      Redondo Apraiz, José Manuel; Garzón Bedoya, Germán; Rozanov, V.B.; Gushkov, S. (Universidad Complutense de Madrid (UCM), 2010)
      Comunicació de congrés
      Accés obert
      Plume and Jets are released in an enclosed volume of water and depending on the initial and environmental conditions, the global mixing efficiency of the overall process is measured. The behaviour of individual plumes is ...
    • Richtmyer-meshkov and rayleigh-taylor fractal mixing 

      Redondo Apraiz, José Manuel; Tellez Alvarez, Jackson David; Vila, Teresa; Lopez Gonzalez-Nieto, Pilar; Sanchez, Jesus Maria (2016)
      Text en actes de congrés
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      Turbulence affects molecular mixing in a large variety of physical processes both in the environment, in astrophysics and in industrial situations. In some events it is interesting to enhance the transport of mass, heat, ...
    • Richtmyer-meshkov and rayleigh-taylor fractal mixing 

      Redondo Apraiz, José Manuel; Vila Esteve, Maria Teresa; Tellez Alvarez, Jackson David; Lopez Gonzalez-Nieto, Pilar; Sánchez, Miguel Ángel (Institute of Thermomechanics, Academy of Sciences of the Czech Republic, 2016-02-10)
      Article
      Accés obert
      Turbulence affects molecular mixing in a large variety of physical processes both in the environment, in astrophysics and in industrial situations. In some events it is interesting to enhance the transport of mass, heat, ...
    • ROFI structure in the gulf of Lions and the NW Mediterranean Sea: field and remote sensing observations of surface coherent structures 

      Fraunie, Philippe; Redondo Apraiz, José Manuel; Platónov, Alexéi Konstantínovich; Díez Rilova, Margarita; Matulka, Anna Magdalena (Universidad Complutense de Madrid (UCM), 2010)
      Comunicació de congrés
      Accés obert
      The advances in radar sensors may be applied to study the flow in the region of fresh water influence (ROFI) region of the ocean. The Synthetic Aperture Radar (SAR) is a useful tool that may be used to study both marine ...
    • 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)
      Text en actes de congrés
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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)
      Text en actes de congrés
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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)
      Text en actes de congrés
      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)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      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)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      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)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      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)
      Text en actes de congrés
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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)
      Text en actes de congrés
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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)
      Text en actes de congrés
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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)
      Text en actes de congrés
      Accés obert
      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 ...