Enviaments recents

  • Volcanic ash modeling with the online NMMB-MONARCH-ASH v1.0 model: model description, case simulation, and evaluation 

    Marti, Alejandro; Folch, Arnau; Jorba, Oriol; Janjic, Zavisa (European Geosciences Union (EGU), 2017-03-24)
    Article
    Accés obert
    Traditionally, tephra transport and dispersal models have evolved decoupled (offline) from numerical weather prediction models. There is a concern that inconsistencies and shortcomings associated with this coupling strategy ...
  • Wavefield compression for adjoint methods in full-waveform inversion 

    Boehm, Christian; Hanzich, Mauricio; de la Puente, Josep; Fichtner, Andreas (Society of Exploration Geophysicists, 2016-09-13)
    Article
    Accés obert
    Adjoint methods are a key ingredient of gradient-based full-waveform inversion schemes. While being conceptually elegant, they face the challenge of massive memory requirements caused by the opposite time directions of ...
  • Double-electron ionization driven by inhomogeneous fields 

    Chacón, A.; Ortmann, L.; Cucchietti, F.; Suárez, N.; Pérez-Hernández, J.A.; Ciappina, M.F.; Landsman, A.S.; Lewenstein, M. (Springer International Publishing, 2017-04)
    Article
    Accés restringit per política de l'editorial
    Electron–electron correlation effects play a crucial role in our understanding of sequential (SDI) and non-sequential double ionization (NSDI) mechanisms. Here, we present a theoretical study of NSDI driven by plasmonic-enhanced ...
  • Volcanic ash modeling with the online NMMB-MONARCH-ASH v1.0 model: model description, case simulation, and evaluation 

    Marti, Alejandro; Folch, Arnau; Jorba, Oriol; Janjic, Zavisa (European Geosciences Union (EGU), 2017-03-24)
    Article
    Accés obert
    Traditionally, tephra transport and dispersal models have evolved decoupled (offline) from numerical weather prediction models. There is a concern that inconsistencies and shortcomings associated with this coupling strategy ...
  • Toward an automatic full-wave inversion: Synthetic study cases 

    Kormann, Jean; Rodriguez, Juan E.; Gutierrez, Natalia; Ferrer, Miguel; Rojas, Otilio; de la Puente, Josep; Hanzich, Mauricio; Cela, Jose M. (Society of Exploration Geophysicists, 2016-12)
    Article
    Accés obert
    Full-waveform inversion (FWI) in seismic scenarios continues to be a complex procedure for subsurface imaging that might require extensive human interaction in terms of model setup, constraints, and data preconditioning. ...
  • Modelling third harmonic ion cyclotron acceleration of deuterium beams for JET fusion product studies experiments 

    Schneider, M.; Johnson, T.; Dumont, R.; Eriksson, L.-G.; Giacomelli, L.; Girardo, J.-B.; Hellsten, T.; Khilkevitch, E.; Kiptily, V.G.; Koskela, T.; Mantsinen, M.; Nocente, M.; Salewski, M.; Sharapov, S.E.; Shevelev, A.E.; Jet Contributors (IOP Publishing, 2016-08-24)
    Article
    Accés restringit per política de l'editorial
  • Challenges in the extrapolation from DD to DT plasmas: experimental analysis and theory based predictions for JET-DT 

    Garcia, J.; Challis, C.; Gallart, D.; Garzotti, L.; Görler, T.; King, D.; Mantsinen, Mervi; Jet Contributors (IOP Publishing, 2016-10-27)
    Article
    Accés obert
    A strong modelling program has been started in support of the future JET-DT campaign with the aim of guiding experiments in deuterium (D) towards maximizing fusion energy production in Deuterium–Tritium (DT). Some of the ...
  • Heat loss prediction of a confined premixed jet flame using a conjugate heat transfer approach 

    Gövert, S.; Mira, Daniel; Zavala-Ake, M.; Kok, J.B.W.; Vázquez, Mariano; Houzeaux, Guillaume (Elsevier, 2017-04)
    Article
    Accés obert
    The presented work addresses the investigation of the heat loss of a confined turbulent jet flame in a lab-scale combustor using a conjugate-heat transfer approach and large-eddy simulation. The analysis includes the ...
  • Generation of Curved High-order Meshes with Optimal Quality and Geometric Accuracy 

    Ruiz-Girones, Eloi; Sarrate, Josep; Roca, Xevi (Elsevier, 2016)
    Article
    Accés obert
    We present a novel methodology to generate curved high-order meshes featuring optimal mesh quality and geometric accuracy. The proposed technique combines a distortion measure and a geometric Full-size image (<1 K)-disparity ...
  • Representing Urban Geometries for Unstructured Mesh Generation 

    Gargallo-Peiró, Abel; Folch, Arnau; Roca, Xevi (Elsevier, 2016)
    Article
    Accés obert
    We present a robust and automatic method to generate an idealized surface geometry of a city landscape ready to be meshed for computer simulations. The city geometry is idealized for non viscous flow simulations and targets ...

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