Now showing items 1-10 of 10

  • A finite volume method to solve the frost growth using dynamic meshes 

    Bartrons Casademont, Eduard; Oliet Casasayas, Carles; Gutiérrez Álvarez, Enrique; Naseri, Alireza; Pérez Segarra, Carlos David (2018-09-01)
    Article
    Restricted access - publisher's policy
    The physical mechanisms of frost formation have been widely studied, yet much empirism is still needed in numerical approaches. Indeed, accurate simulations of frost growth can be reached by setting up a specific combination ...
  • Detection of icing and actuator faults in the longitudinal dynamics of small UAVs using an LPV proportional integral unknown input observer 

    Rotondo, Damiano; Cristofaro, Andrea; Johansen, Tor Arne; Nejjari Akhi-Elarab, Fatiha; Puig Cayuela, Vicenç (2016)
    Conference report
    Open Access
    This paper proposes a linear parameter varying proportional integral unknown input observer (PI-UIO) for the diagnosis of actuator faults and icing in unmanned aerial vehicles. It is shown that in presence of sensor noise, ...
  • Detection of icing and actuators faults in the longitudinal dynamics of small UAVs using an LPV proportional integral unknown input observer 

    Rotondo, Damiano; Cristofaros, A; Johansen, T; Nejjari Akhi-Elarab, Fatiha; Puig Cayuela, Vicenç (IEEE Press, 2016)
    Conference report
    Open Access
    This paper proposes a linear parameter varying proportional integral unknown input observer (PI-UIO) for the diagnosis of actuator faults and icing in unmanned aerial vehicles. It is shown that in presence of sensor noise, ...
  • Diagnosis of icing and actuator faults in UAVs using LPV unknown input observers 

    Rotondo, Damiano; Cristofaro, Andrea; Johansen, Tor Arne; Nejjari Akhi-Elarab, Fatiha; Puig Cayuela, Vicenç (2017-10-05)
    Article
    Open Access
    This paper proposes a discrete-time linear parameter varying (LPV) unknown input observer (UIO) for the diagnosis of actuator faults and ice accretion in unmanned aerial vehicles (UAVs). The proposed approach, which is ...
  • Frost formation: optimizing solutions under a finite volume approach 

    Bartrons Casademont, Eduard; Pérez Segarra, Carlos David; Oliet Casasayas, Carles (Institute of Physics (IOP), 2016)
    Conference report
    Open Access
    A three-dimensional transient formulation of the frost formation process is developed by means of a finite volume approach. Emphasis is put on the frost surface boundary condition as well as the wide range of empirical ...
  • Ice thickness effects on Aquarius brightness temperatures over Antarctica 

    Pablos Hernández, Miriam; Piles Guillem, Maria; Gonzalez Gambau, Verónica; Camps Carmona, Adriano José; Vall-Llossera Ferran, Mercedes Magdalena (2015-04-01)
    Article
    Open Access
    The Dome-C region, in the East Antarctic Plateau, is regarded as an ideal natural laboratory for calibration/validation of space-borne microwave radiometers. At L-band, the thermal stability of this region has been confirmed ...
  • Modélisation d'une grille d'injection de givre 

    Alvarez Vinuesa, David (Universitat Politècnica de Catalunya / Institut Supérieur de l’Aéronautique et de l’Espace, 2009)
    Master thesis (pre-Bologna period)
    Restricted access - author's decision
    El proyecto consta de: -Una introducción al mundo del hielo en los helicopterios. -Una valoración de las necesidades para el objetivo de realizar unos ensayos en vuelo simulando condiciones propicias para la formación de ...
  • Relationships between Arctic sea ice drift and strength modelled by NEMO-LIM3.6 

    Docquier, David; Massonnet, François; Barthélemy, Antoine; Tandon, Neil F.; Lecomte, Olivier; Fichelet, Thierry (European Geosciences Union (EGU), 2017-12-12)
    Article
    Open Access
    Sea ice cover and thickness have substantially decreased in the Arctic Ocean since the beginning of the satellite era. As a result, sea ice strength has been reduced, allowing more deformation and fracturing and leading ...
  • Sea ice detection using GNSS-R data from UK TDS-1 

    Alonso Arroyo, Alberto; Zavorotny, Valery U.; Camps Carmona, Adriano José (Institute of Electrical and Electronics Engineers (IEEE), 2016)
    Conference report
    Open Access
    This work demonstrates a methodology to detect sea ice presence over the Arctic and Antarctic regions using Global Navigation Satellite Systems (GNSS)-Reflectometry (GNSS-R) data obtained with the UK TDS-1 satellite. The ...
  • Towards real-time CFD simulation of in-flight icing 

    Habashi, Wagdi G. (Barcelona Supercomputing Center, 2016-09-10)
    Conference report
    Open Access
    Despite the concerted efforts of manufacturers and certification agencies, incidents and accidents continue to happen to aircraft certificated to “Fly Into Known Icing”, falsely thought of as being “immune to in-flight ...