Now showing items 1-6 of 6

  • Coupled heat and water flow dynamics in dry soils : application to a multilayer waste cover 

    Gran Esforzado, Meritxell (Universitat Politècnica de Catalunya, 2015-05-27)
    Doctoral thesis
    Open Access
    Unsaturated flow plays an important role in numerous environmental phenomena. It is complex in arid regions, where liquid water fluxes are small and vapor fluxes become relevant, so that heat, water and solute mass transport ...
  • Dynamics of water vapor flux and water separation processes during evaporation from a salty dry soil 

    Gran Esforzado, Meritxell; Massana, Jordi; Carrera Ramírez, Jesús; Saaltink, Maarten Willem; Olivella Pastallé, Sebastià; Ayora Ibáñez, Carlos; Lloret Morancho, Antonio (Elsevier, 2011-01)
    Article
    Restricted access - publisher's policy
    Evaporation from a salty soil generates salt accumulation near the surface with the subsequent deterioration of the soil quality. Salinization mechanisms are poorly understood despite their global impact. Vapor flux and ...
  • Estudio de la distribución del agua causada por la evaporación en un suelo salinizado 

    Gran Esforzado, Meritxell (Universitat Politècnica de Catalunya, 2005-07)
    Minor thesis
    Open Access
  • Modeling evaporation processes in a saline soil from saturation to oven dry conditions 

    Gran Esforzado, Meritxell; Carrera Ramírez, Jesús; Olivella Pastallé, Sebastià; Saaltink, Maarten Willem (2011)
    Article
    Open Access
    Thermal, suction and osmotic gradients interact during evaporation from a salty soil. Vapor fluxes become the main water flow mechanism under very dry conditions. A coupled nonisothermal multiphase flow and a reactive ...
  • Salinity is reduced below the evaporation front during soil salinization 

    Gran Esforzado, Meritxell; Carrera Ramírez, Jesús; Olivella Pastallé, Sebastià; Massana, Jordi; Saaltink, Maarten Willem; Ayora Ibáñez, Carlos; Lloret Morancho, Antonio (2009-11-01)
    Conference report
    Open Access
    La salinización de suelos es un problema global. Generalmente, la salinización es causada por el transporte de sales hacia la superficie por capilaridad y, a pesar de su importancia global, los mecanismos que la controlan ...
  • Temperature driven vapor fluxes in soils cause a net recharge 

    Gran Esforzado, Meritxell; Saaltink, Maarten Willem; Dandar, Enkhbayar; Carrera Ramírez, Jesús (2017)
    Conference lecture
    Open Access
    Temperature gradients can drive vapor diffusion by controlling vapor pressure in the soil. We studied vapor diffusion for soils in two different climates: A semiarid climate at El Cabril (Córdoba, Spain) and a subarctic ...