L'activitat científica del grup està centrada en l'àmbit de les Enginyeries Mecànica i Aeroespacial amb l'objectiu d'estudiar el disseny i optimització d'equips i sistemes tèrmics i aerodinàmics, això com millorar la seva eficiència. Per a la realització d'aquests estudis, el grup utilitza tècniques de simulació numèrica avançada, incloent tècniques de supercomputació per a les quals el grup compta amb especialistes d'alt nivell, així com també fa servir tècniques experimentals.

Recent Submissions

  • Intercomparison of Radon Flux Monitors at Low and at High Radium Content Areas under Field Conditions 

    Rábago, Daniel; Quindós, Luis; Vargas Drechsler, Arturo; Sainz, Carlos; Radulescu, Ileana; Razvan Ioan, Mihail; Cardellini, Francesco; Capogni, Marco; Rizzo, Alessandro; Celaya, Santiago; Fuente, Ismael; Fuente, Marta; Grossi, Claudia; Rodríguez, Maria (2022-04-01)
    Article
    Open Access
    Interlaboratory exercises are a good tool to compare the response of different systems to the same quantity and to identify possible inconsistencies between them. One of the main goals of the EMPIR 19ENV01 traceRadon project ...
  • A method for the experimental characterisation of novel drag-reducing materials for very low Earth orbits using the Satellite for Orbital Aerodynamics Research (SOAR) mission 

    Crisp, Nicholas H.; Roberts, Peter C.E; Hanessian, Virginia; Sulliotti-Linner, Valeria; Herdrichd, Georg H.; García-Almiñana, Daniel; Kataria, Dhiren (2022-04-07)
    Article
    Open Access
    The Satellite for Orbital Aerodynamics Research (SOAR) is a 3U CubeSat mission that aims to investigate the gas–surface interactions (GSIs) of diferent materials in the very low Earth orbit environment (VLEO), i.e. below ...
  • ADBSat: Verification and validation of a novel panel method for quick aerodynamic analysis of satellites 

    Sinpetru, Luciana A.; Crisp, Nicholas H.; Roberts, Peter C.E; Sulliotti-Linner, Valeria; Hanessian, Virginia; Herdrichd, Georg H.; Romano, Francesco; García-Almiñana, Daniel; Rodríguez Donaire, Silvia (2022-06)
    Article
    Restricted access - publisher's policy
    We present the validation of ADBSat, a novel implementation of the panel method including a fast pseudo-shading algorithm, that can quickly and accurately determine the forces and torques on satellites in free-molecular ...
  • Development and analysis of novel mission scenarios based on Atmosphere-Breathing Electric Propulsion (ABEP) 

    Vaidya, Shreepali Sanjay; Traub, Constantin; Romano, Francesco; Rodríguez Donaire, Silvia; García-Almiñana, Daniel; Sureda Anfres, Miquel; García Berenguer, Marina (2022-03-21)
    Article
    Restricted access - publisher's policy
    Operating satellites in Very Low Earth Orbit (VLEO) benefit the already expanding New Space industry in applications including Earth Observation and beyond. However, long-term operations at such low altitudes require ...
  • Study of the aerodynamic forces on a simplified shape X-43 aircraft under supersonic conditions, design optimization 

    Carós Roca, Lidia; Jané Ippel, Christian; Coma Company, Martí; Pons Prats, Jordi; Bergadà Granyó, Josep Maria (2020-01-22)
    Article
    Open Access
    The paper focuses on the shape optimization, based on the resultant aerodynamic forces, of a simplified X-43 aircraft. The equations of oblique shock waves and Prandtl-Meyer expansion waves, along with the improvement of ...
  • Parallel sweep-based preconditioner for the solution of the linear Boltzmann transport equation 

    Borrell Pol, Ricard; Colomer Rey, Guillem; Lehmkuhl Barba, Oriol; Rodríguez Pérez, Ivette María; Oliva Llena, Asensio (Elsevier, 2013-12-15)
    Article
    Restricted access - publisher's policy
    The Boltzmann transport equation is solved in the context of radiative heat transfer, for an isotropically scattering medium with reflecting boundaries. Under these circumstances, the different ordinates of the angular ...
  • Optimization of the thermal and fluid dynamic behaviour of air curtains: analysis of the plenum by means of LES 

    Giráldez García, Héctor; Pérez Segarra, Carlos David; Rodríguez Pérez, Ivette María; Oliva Llena, Asensio (2012)
    Conference report
    Restricted access - publisher's policy
    The improvement procedure of an air curtain unit (ACU) is described in the present study. The procedure is based on Large Eddy Simulations (LES) and Hot Wire Anemometry (HWA) measurements. Initially, the flow provided by ...
  • Intake design for an Atmosphere-Breathing Electric Propulsion system (ABEP) 

    Romano, Francesco; Espinosa-Orozco, J.; Pfeiffer, M.; Herdrichd, Georg H.; Crisp, Nicholas H.; Holmes, Brandon E.A.; Edmonson, Steve; Haigh, Sarah J.; Livadiotti, Sabrina; Macario Rojas, Alejandro; García-Almiñana, Daniel; Rodríguez Donaire, Silvia; Sureda Anfres, Miquel (2021-10)
    Article
    Restricted access - publisher's policy
    Challenging space missions include those at very low altitudes, where the atmosphere is source of aerodynamic drag on the spacecraft. To extend the lifetime of such missions, an efficient propulsion system is required. One ...
  • Launch, Operations, and First Experimental Results of the Satellite for Orbital Aerodynamics Research (SOAR) 

    Crisp, Nicholas H.; Macario Rojas, Alejandro; Roberts, Peter C.E; Edmonson, Steve; Haigh, Sarah J.; Holmes, Brandon E.A.; Livadiotti, Sabrina; Oiko, Vitor; Smith, Katharine L.; Sinpetru, Luciana A.; García-Almiñana, Daniel; Rodríguez Donaire, Silvia; Sureda Anfres, Miquel (International Astronautical Federation, 2021)
    Conference report
    Restricted access - publisher's policy
    The Satellite for Orbital Aerodynamics Research (SOAR) is a 3U CubeSat that has been designed to investigate the aerodynamic performance of different materials at low orbital altitudes. The spacecraft has been developed ...
  • Early Results from the DISCOVERER Project 

    Roberts, Peter C.E; Crisp, Nicholas H.; Oiko, Vitor; Edmonson, Steve; Romano, Francesco; Rodríguez Donaire, Silvia; García-Almiñana, Daniel; Haigh, Sarah J.; Holmes, Brandon E.A.; Livadiotti, Sabrina; Sureda Anfres, Miquel (International Astronautical Federation, 2021)
    Conference report
    Restricted access - publisher's policy
    The use of very low Earth orbits (VLEO), for communications and remote sensing satellites, offers a number of significant payload and platform benefits. Imaging from these altitudes allows higher resolution or smaller ...
  • A data-driven wall-shear stress model for LES using gradient boosted decision trees 

    Radhakrishnan, Sarath; Adu Gyamfi, Lawrence; Miró Jané, Arnau; Font García, Bernat; Calafell Sandiumenge, Joan; Lehmkuhl Barba, Oriol (Springer Nature, 2021)
    Conference report
    Open Access
    With the recent advances in machine learning, data-driven strategies could augment wall modeling in large eddy simulation (LES). In this work, a wall model based on gradient boosted decision trees is presented. The model ...
  • On the Characteristics of the Super-Critical Wake behind a Circular Cylinder 

    Rodríguez Pérez, Ivette María; Lehmkuhl Barba, Oriol (Multidisciplinary Digital Publishing Institute (MDPI), 2021-11-03)
    Article
    Open Access
    The flow topology of the wake behind a circular cylinder at the super-critical Reynolds number of Re=7.2×105 is investigated by means of large eddy simulations. In spite of the many research works on circular cylinders, ...

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