Recent Submissions

  • Numerical investigation of forced convection heat transfer from a sphere at low Prandtl numbers 

    Rodríguez Pérez, Ivette María; Campo, Antonio (2023-02)
    Article
    Open Access
    Direct numerical simulations of the flow and forced convective heat transfer around a sphere at Reynolds numbers between 𝑅𝑒 = 500 and 𝑅𝑒 = 1000 are performed. We investigate the effects of the Prandtl number (𝑃 𝑟) ...
  • Strategic similarities between earth observation small satellite constellations in very low earth orbit and low-cost carriers by means of strategy canvas 

    Rodríguez Donaire, Silvia; García-Almiñana, Daniel; García Berenguer, Marina; Roberts, Peter C.E; Crisp, Nicholas H.; HERDRICH, GEORG; KATARIA, DHIREN; HANESSIAN, VIRGINIA; Becedas, Jonathan; SEMINARI, SIMON (2022-08-24)
    Article
    Open Access
    The space industry is growing and space data are becoming accessible to businesses that were previously unthinkable. Constellations of small satellites in Very Low Earth Orbit (VLEO) have created a gap that is allowing ...
  • Business roadmap for the European Union in the NewSpace ecosystem: a case study for access to space 

    Rodríguez Donaire, Silvia; GIL MORA, PAULINO; García-Almiñana, Daniel; Crisp, Nicholas H.; HERDRICH, GEORG; Roberts, Peter C.E; KATARIA, DHIREN; HANESSIAN, VIRGINIA; Becedas, Jonathan; SEMINARI, SIMON (2022-06-24)
    Article
    Open Access
    A business roadmap is a high-level strategic management tool that maps the actions to develop new industries. It serves as a guide to plan and forecast technological, market and product developments in a more operational ...
  • On the wake dynamics of an oscillating cylinder via proper orthogonal decomposition 

    Eiximeno Franch, Benet; Miró Jané, Arnau; Cajas García, Juan Carlos; Lehmkuhl Barba, Oriol; Rodríguez Pérez, Ivette María (Multidisciplinary Digital Publishing Institute (MDPI), 2022-09-02)
    Article
    Open Access
    The coherent structures and wake dynamics of a two-degree-of-freedom vibrating cylinder with a low mass ratio at Re=5300 are investigated by means of proper orthogonal decomposition (POD) of a numerical database generated ...
  • Design of an intake and a thruster for an atmosphere-breathing electric propulsion system 

    Romano, Francesco; Herdrich, Georg; Chan, Yung-An; García-Almiñana, Daniel; Rodríguez Donaire, Silvia; Sureda Anfres, Miquel (2022-05-27)
    Article
    Restricted access - publisher's policy
    Challenging space missions include those at very low altitudes, where the atmosphere is the source of aerodynamic drag on the spacecraft, that fnally defnes the mission’s lifetime, unless a way to compensate for it is ...
  • 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 ...
  • 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 ...

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