Now showing items 1-20 of 60

    • A complex storm system in Saturn's north polar atmosphere in 2018 

      Sánchez Lavega, Agustín; García Melendo, Enrique José; Legarreta, Jon J.; Hueso, Ricardo; del Rio Gaztelurrutia, Teresa; Sanz-Requena, Jose Francisco; Pérez Hoyos, Santiago; Simon, Amy A.; Wong, Michael; Soria Guerrero, Manel; Gómez Forrellad, Josep Maria; Barry, Trevor; Delcroix, Marc; Sayanagi, Kunio; Blalock, J; Gunnarson, J. L.; Dyudina, Uliana; Ewald, S. (Springer Nature, 2019-10-21)
      Article
      Open Access
      Saturn’s convective storms usually fall in two categories. One consists of mid-sized storms ~2,000¿km wide, appearing as irregular bright cloud systems that evolve rapidly, on scales of a few days. The other includes the ...
    • An assessment of different relay network topologies to improve Earth-Mars communications 

      Betriu Roure, Paula; Soria Guerrero, Manel; Gutiérrez Cabello, Jordi; Barlabe Dalmau, Antoni (2023-04)
      Article
      Open Access
      The future of deep space communications encompasses a challenging situation where the current facilities used to communicate with different spacecraft may become saturated as a result of an increasing number of missions ...
    • Analysis of planetary spacecraft images with SPICE 

      Peña Mercade, Teresa; Soria Guerrero, Manel; Betriu, Paula; García Melendo, Enrique José (Universitat Politècnica de Catalunya, 2022-04-29)
      Conference lecture
      Open Access
      Spacecraft images are an invaluable source of information in Planetary Science. However, they must be processed and the initial stage is to navigate them, i.e., determine the longitude and latitude coordinates of each pixel ...
    • Analyzing the performance of a miniature 3D wind sensor for Mars 

      Domínguez Pumar, Manuel; Kowalski, Lukasz; Jiménez Serres, Vicente; Rodríguez Pérez, Ivette María; Soria Guerrero, Manel; Bermejo Broto, Sandra; Pons Nin, Joan (Multidisciplinary Digital Publishing Institute (MDPI), 2020-10-20)
      Article
      Open Access
      This paper analyzes the behavior of a miniature 3D wind sensor designed for Mars atmosphere. The sensor is a spherical structure of 10 mm diameter divided in four sectors. By setting all the sectors to constant temperature, ...
    • Assessing the usability of two declarative programming languages to model geometric events 

      Llopis, Marcel; Franch Gutiérrez, Javier; Soria Guerrero, Manel (American Institute of Aeronautics and Astronautics (AIAA), 2023-09)
      Article
      Open Access
      When space missions plan scientific actions for robotic spacecraft to execute, they frequently do so within a geometric context called an opportunity. Although there are geometric software libraries that let users write ...
    • Boundary layer flow control using synthetic jets on the flow over a NACA 0012 airfoil 

      Duran, David; Rodríguez Pérez, Ivette María; Soria Guerrero, Manel; Lehmkuhl Barba, Oriol (2017)
      Conference report
      Restricted access - publisher's policy
      Numerical simulations of the flow control using a synthetic jet are presented. The flow considered is around a NACA 0012 airfoil at Re = 5000 and the actuator is located at 6% of the chord from the leading edge. This work ...
    • ³Cat-4 Mission: a 1-unit cubesat for earth observation with a L-band radiometer and a GNSS-reflectometer using software defined radio 

      Ruiz De Azúa Ortega, Juan Adrián; Muñoz Martin, Joan Francesc; Fernandez Capon, Lara Pilar; Badia Ballús, Marc; Llaveria Godoy, David; Diez Garcia, Carlos; Aguilella, Andrea; Pérez Portero, Adrián; Milián, O.; Sobrino Hidalgo, Marco; Navarro Trastoy, Ángel; Lleó, H.; Sureda Anfres, Miquel; Soria Guerrero, Manel; Calveras Augé, Anna M.; Camps Carmona, Adriano José (2019)
      Conference lecture
      Restricted access - publisher's policy
      Global Navigation Satellite System Reflectometry and L-band microwave radiometry have been used for soil moisture, biomass, and cryosphere studies. Combining both technologies in a low-power and cost-effective solution ...
    • Design and smart control of sensors for optimal performance: a application to wind sensing in Mars 

      Domínguez Pumar, Manuel; Kowalski, Lukasz; Jiménez Serres, Vicente; Pons Nin, Joan; Bermejo Broto, Sandra; Rodríguez Pérez, Ivette María; Soria Guerrero, Manel (2019)
      Conference report
      Open Access
      Sensor performance in terms of time response and sensitivity can be dramatically enhanced by operating sensors under what may be called a “constant state operation”. This means that any change in the sensor due to external ...
    • Direct numerical simulation of a differentially heated cavity of aspect ratio 4 with Rayleigh numbers up to 10(11) - Part I: Numerical methods and time-averaged flow 

      Trias Miquel, Francesc Xavier; Gorobets, Andrei; Soria Guerrero, Manel; Oliva Llena, Asensio (2010-01-31)
      Article
      Restricted access - publisher's policy
      A set of direct numerical simulations of a differentially heated cavity of aspect ratio 4 with adiabatic horizontal walls is presented. The five configurations selected here (Rayleigh numbers based on the cavity height ...
    • Direct numerical simulation of a differentially heated cavity of aspect ratio 4 with Rayleigh numbers up to 10(11) - Part II: Heat transfer and flow dynamics 

      Trias Miquel, Francesc Xavier; Gorobets, Andrei; Soria Guerrero, Manel; Oliva Llena, Asensio (2010-01-31)
      Article
      Restricted access - publisher's policy
      This is the second of a two-part paper on five direct numerical simulations of a differentially heated cavity of aspect ratio 4 with adiabatic horizontal walls (Rayleigh numbers based on the cavity height. The numerical ...
    • DNS of turbulent natural convection flows on the MareNostrum supercomputer 

      Trias Miquel, Francesc Xavier; Gorobets, Andrei; Soria Guerrero, Manel; Oliva Llena, Asensio (2009)
      Article
      Restricted access - publisher's policy
      A code for the direct numerical simulation (DNS) of incompressible turbulent flows that provides a fairly good scalability for a wide range of computer architectures has been developed. The spatial discretization of the ...
    • Exploring the performance of a miniature 3D wind sensor under extreme martian winds up to the dust devil scale 

      Domínguez Pumar, Manuel; Kowalski, Lukasz; Jiménez Serres, Vicente; Rodríguez Pérez, Ivette María; Soria Guerrero, Manel (2019)
      Conference report
      Open Access
      The objective of this paper is to explore the performance of a miniature 3D spherical wind sensor for Mars atmosphere, working under extreme wind speeds, up to the Dust Devil scale. The experimental campaign has been made ...
    • Flow topology and heat transfer analysis of slotted and axisymmetric synthetic impinging jets 

      Miró Jané, Arnau; Soria Guerrero, Manel; Cajas García, Juan Carlos; Rodríguez Pérez, Ivette María; Moulinec, Charles (2021-06)
      Article
      Open Access
      This work is focused on exploring the flow and heat transfer capabilities for slotted and axisymmetric cavity configurations for synthetic impinging jets; the jet is enclosed between two isothermal parallel plates, impinging ...
    • Fluid dynamics and heat transfer in the wake of a sphere 

      Rodríguez Pérez, Ivette María; Lehmkuhl Barba, Oriol; Soria Guerrero, Manel; Gómez, Samuel; Domínguez Pumar, Manuel; Kowalski, Lukasz (2019-04)
      Article
      Open Access
      Direct numerical simulation and large-eddy simulation have been performed for a heated sphere at Reynolds numbers of $Re=1000$ and $Re=10^4$, respectively. The Prandtl number for both simulations has been $Pr=0.7$. ...
    • FONAMENTS D' INFORMÀTICA (Examen 2n quadrimestre, 1r parcial) 

      Soria Guerrero, Manel (Universitat Politècnica de Catalunya, 2011-04-11)
      Exam
      Restricted access to the UPC academic community
    • FONAMENTS D' INFORMÀTICA (Examen 2n quadrimestre, 1r parcial) 

      Soria Guerrero, Manel (Universitat Politècnica de Catalunya, 2011-04-11)
      Exam
      Restricted access to the UPC academic community
    • From extruded-2D to fully-3D geometries for DNS: a multigrid-based extension of the Poisson solver 

      Gorobets, Andrei; Trias Miquel, Francesc Xavier; Soria Guerrero, Manel; Pérez Segarra, Carlos David; Oliva Llena, Asensio (2010)
      Article
      Restricted access - publisher's policy
      Direct numerical simulation (DNS) of incompressible flows is an essential tool for improving the understanding of the physics of turbulence and for the development of better turbulence models. The Poisson equation, the ...
    • Heuristics of node selection criteria to assess robustness of world airport network 

      Soria Guerrero, Manel; Lordan González, Oriol; Sallán Leyes, José María (2017-06-14)
      Article
      Open Access
      The world airport network (WAN) is one of the networked infrastructures that shape today's economic and social activity, so its resilience against incidents affecting the WAN is an important problem. In this paper, the ...
    • HGS user manual 

      Soria Guerrero, Manel; Fuster, Caleb; Miró Jané, Arnau (Universitat Politècnica de Catalunya, 2022-10-01)
      Lecture notes
      Open Access
    • Hybrid MPI+OpenMP parallelization of a Navier-Stokes solver for large-scale DNS 

      Gorobets, Andrei; Trias Miquel, Francesc Xavier; Borrell Pol, Ricard; Soria Guerrero, Manel; Oliva Llena, Asensio (2011)
      Conference lecture
      Restricted access - publisher's policy
      This work presents a parallel Navier-Stokes solver for the large-scale direct numerical simulation (DNS) of incompressible flows with one periodic direction. It is based on a scalable Poisson solver that combines an FFT ...