Now showing items 21-40 of 78

  • FÍSICA APLICADA (Examen 1r quadrimestre) 

    Redondo Apraiz, José Manuel (Universitat Politècnica de Catalunya, 2006-01-06)
    Exam
    Restricted access to the UPC academic community
  • Flow structure and resistance in flexible vegetated channels 

    Velasco Montes, David; Bateman Pinzón, Allen; Redondo Apraiz, José Manuel (2010)
    Conference lecture
    Open Access
    The present paper helps to understand the behaviour of the flow through plants, as a first approximation to the environmental interactions happening in natural rivers.
  • Fractal analysis of growing cities and its relationship with health centre 

    Leyton, Carolina; Redondo Apraiz, José Manuel; Tarquis Alfonso, Ana Maria; Gil Martín, Joan Carles; Tellez Alvarez, Jackson David (Moscow Institute of Physics and Technology (MIPT), 2017-06-06)
    Article
    Open Access
    During recent years, many research group interested in the study of organizational networks from different fields, e.g. studies of behavior of cities growth following the fractal theory. Considering the fractal analysis ...
  • Fractal analysis of growing cities and its relationship with health centre distribution 

    Leyton, Carolina; Redondo Apraiz, José Manuel; Gil Martín, Joan Carles; Tellez Alvarez, Jackson David; Tarquis Alfonso, Ana Maria (Moscow Institute of Physics and Technology (MIPT), 2017-04-15)
    Article
    Open Access
    During recent years, many research group interested in the study of organizational networks from different fields, e.g. studies of behavior of cities growth following the fractal theory. Considering the fractal analysis ...
  • Fractal approach of turbulent dispersion 

    Redondo Apraiz, José Manuel (CNRS, éditeur, 2010)
    Conference report
    Open Access
    There are several techniques suitable for measuring and modelling dispersion from scalar or velocity-field measurements in a turbulent flow. Each of these has peculiar features and sometimes, even different scaling, and a ...
  • Image analysis of surf zone hydrodynamics 

    Redondo Apraiz, José Manuel; Falqués Serra, Albert; Rodríguez, A.; Bahía, E.; Sánchez-Arcilla Conejo, Agustín; Gracia Garcia, Vicente; Stive, Marcel J.F. (American Society of Civil Engineers (ASCE), 1994)
    Conference lecture
    Open Access
  • Induced structures under seasonal flow conditions in the Ebro delta shelf: Laboratory and numerical models 

    Carrillo Cortés, José Alejandro; Redondo Apraiz, José Manuel; Fraunie, Philippe; Durand, Nathalie (2009-07-28)
    Article
    Restricted access - publisher's policy
    The characteristic induced length scale produced by a river flow in its outlet is studied. Two experimental methods are compared: a) Physical modeling in laboratory and b) numerical mesoscale diffusion model; under low ...
  • Influence of stability on the flux-profile relationships for wind speed and temperature, for the stable atmospheric boundary layer 

    Yagüe, Carlos; Viana, S.; Maqueda, Gregorio; Redondo Apraiz, José Manuel (University of Thechnology and Agriculture Nicholas Copernicus University, 2006-06-21)
    Article
    Open Access
    Data from SABLES98 experimental campaign have been used in order to study the influence of stability (from weak to strong stratification) on the flux-profile relationships for momentum, m, and heat, h. Measurements from ...
  • Intermittency and multi-fractal velocimetry (IMFV) in Rayleigh-Taylor and convective flows 

    Tellez Alvarez, Jackson David; Malik, Nadeem; Vila, Teresa; Redondo Apraiz, José Manuel (2016)
    Conference report
    Restricted access - publisher's policy
    New descriptors to investigate mixing in multi-scale turbulence analysis and couple PIV Laser induced applications with Fractal analysis in Shock induced flows as well as in convective driven flows are discussed. The ...
  • Large eddy simulation and laboratory experiments on the decay of grid wakes in strongly stratified flows 

    Fraunie, P.; Chashechkin, Y.; Redondo Apraiz, José Manuel; Velasco Montes, David; Rayo Berreba, S. (2009-07-27)
    Article
    Open Access
    A detailed analysis of the flow structure resulting from the combination of turbulence and internal waves is carried out and visualized by means of the Schlieren method on waves in a strongly stratified fluid at the ...
  • Lift off and turbidity currents in the environment 

    Redondo Apraiz, José Manuel (Institute of Thermomechanics, Academy of Sciences of the Czech Republic, 2014)
    Conference lecture
    Open Access
    This contribution presents an experimental investigation on the behaviour of sediments in a turbulent boundary layer flow, it compares the energy and vorticity needed to generate a turbidity current and the zero mean ...
  • Marine pollution in European coastal waters monitored by the ERS-2 SAR: a comprehensive statistical analysis 

    Gade, Martin; Redondo Apraiz, José Manuel (1999)
    Conference report
    Open Access
    The oil pollution of the southern Baltic Sea, the North Sea, and the northwestern Mediterranean Sea has been studied within a two-year period from December 1996 until November 1998. In total, the authors have analyzed more ...
  • Metodologia para la obtención del campo de velocidad en la proximidad de las rejas de alcantarillado 

    Tellez Alvarez, Jackson David; Gómez Valentín, Manuel; Russo, Beniamino; Redondo Apraiz, José Manuel (2016)
    Conference report
    Restricted access - publisher's policy
    Los grandes cambios urbanísticos de las últimas décadas en nuestras ciudades han modificado significativamente su respuesta hidrológica frente a un evento de lluvia. Esto se traduce en un aumento de las velocidades de ...
  • Mezcla turbulenta por rejilla oscilante : nuevos experimentos y técnicas de alta resolución 

    Redondo Apraiz, José Manuel; Sánchez Ariz, Miguel Ángel; Salud Puig, Josep (2015-07-05)
    External research report
    Open Access
    We 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 ...
  • Mixing and entrainment in convective flows, jets and grid turbulence 

    Redondo Apraiz, José Manuel; Tellez Alvarez, Jackson David; Sanchez Carcar, Jesus Maria (2015-12-02)
    External research report
    Open Access
    New industrial and didactic flow solutions based on new flow concepts are needed to meet the unprecedented requirements set by the dramatically increasing energy needs, the use of Thermoelectric didactive devices are neded ...
  • Mixing efficiency across Rayleigh-Taylor and Richtmeyer-Meshkov fronts 

    Redondo Apraiz, José Manuel; Lopez Gonzalez-Nieto, Pilar; Cano Marchante, Jose Leandro; Andrés Garzón, Germán (World Scientific Publishing, 2015-06-03)
    Article
    Open Access
    Mixing generated by gravitational acceleration and the role of local turbulence measured through multifractal methods is examined in numerical experiments of Rayleigh-Taylor and Richtmyer-Meshkov driven front occurring ...
  • Mixing efficiency in buoyant flows 

    Redondo Apraiz, José Manuel; Lopez Gonzalez-Nieto, Pilar; Díez Rilova, Margarita (Institute of Thermomechanics, Academy of Sciences of the Czech Republic, 2012-02-15)
    Part of book or chapter of book
    Restricted access - publisher's policy
  • Mixing in convective thermal fluxes in unsteady nonhomogeneous flows generating complex three dimensional vorticity patterns 

    Redondo Apraiz, José Manuel; Tellez Alvarez, Jackson David; Sanchez, Jesus M.; Lopez Gonzalez-Nieto, Pilar (2016)
    Conference report
    Open Access
    Diffusion and scaling of the velocity and vorticity in a thermoelectric driven heating and cooling experimental device is presented in order to map the different patterns and transitions between two and three dimensional ...
  • Montaje experimental para el estudio de la mezcla generada por penachos turbulentos 

    Lopez Gonza, Pilar; Cano Marchante, Jose Leandro; Redondo Apraiz, José Manuel; Tijera, Manuel (Universidad Complutense de Madrid (UCM), 2009-09-01)
    Article
    Open Access
    Se presenta un sencillo modelo de laboratorio para generar mezcla turbulenta entre dos fluidos miscibles que están en una situación inicial inestable en un campo gravitatorio. El proceso de mezcla se genera por medio de ...
  • Multifractal analysis of a wake for a single wind turbine 

    Strijhak, Sergei; Redondo Apraiz, José Manuel; Tellez Alvarez, Jackson David (2017)
    Conference report
    Open Access
    Wind energy is an important component of renewable energy sources. Studying of turbulent wakes for wind turbines and interactions with Atmospheric Boundary Layer is an urgent problem. The theory of chaos and fractal geometry ...