Ponències/Comunicacions de congressos
Recent Submissions
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Active flow control of an aircraft in full stall
(2021)
Conference report
Open AccessThe aerodynamic performance of active flow control on wings using synthetic jets with zero net-mass flow is investigated. The study is conducted via wall-modeled large-eddy simulations using a finiteelement-based solver. ... -
DISCOVERER: Final results and outcomes
(International Astronautical Federation, 2022)
Conference report
Restricted access - publisher's policyThe DISCOVERER project commenced in 2017 with the aim to advance the development of key technologies to enable the commercially viable, sustained operation of satellites in very low Earth orbits (VLEO). Funded by the ... -
Platform and system design study of a VLEO satellite platform using the IRS RF Helicon-based Plasma Thruster
(International Astronautical Federation, 2022)
Conference report
Restricted access - publisher's policyTo achieve a feasible lifetime of several years, most satellites are deployed in orbits higher than 400 km. Drag of residual atmosphere causes a slow orbit decay, resulting in the deorbit of the spacecraft. However, e.g. ... -
Very low Earth orbit constellations for Earth observation
(International Astronautical Federation, 2022)
Conference report
Restricted access - publisher's policyVery Low Earth Orbits (VLEOs), those below 450 km, present a number of benefits and challenges for the development and operation of Earth observation spacecraft at both the system and mission level. This paper examines the ... -
Experimental Results from the Satellite for Orbital Aerodynamics Research (SOAR) Mission
(International Astronautical Federation, 2022)
Conference report
Restricted access - publisher's policyThe Satellite for Orbital Aerodynamics Research (SOAR) is a 3U CubeSat that has been designed to investigate the aerodynamic performance of different materials and perform demonstrations of aerodynamic attitude control ... -
Optimization of the thermal and fluid dynamic behaviour of air curtains: analysis of the plenum by means of LES
(2012)
Conference report
Restricted access - publisher's policyThe 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 ... -
Launch, Operations, and First Experimental Results of the Satellite for Orbital Aerodynamics Research (SOAR)
(International Astronautical Federation, 2021)
Conference report
Restricted access - publisher's policyThe 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
(International Astronautical Federation, 2021)
Conference report
Restricted access - publisher's policyThe 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
(Springer Nature, 2021)
Conference report
Open AccessWith 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 ... -
Integrating the Science Opportunity Analyzer with a reusable opportunity search framework
(American Institute of Aeronautics and Astronautics (AIAA), 2020)
Conference report
Restricted access - publisher's policyIn our interactions with the Science Opportunity Analyzer (SOA) software, we recognized how its ability to search for geometric events in space is a need for robotic space missions in general. To satisfy this need, we ... -
Aerodynamic Technologies for Earth Observation Missions in Very Low earth Orbit
(2018)
Conference report
Restricted access - publisher's policyFlying at VLEO has several advantages such as the increase of the resolution of images recorded by optical instruments, the increase of geospatial position accuracy, the improvement of the signal to noise ratio and the ... -
Design and development of a hyper-thermal atomic oxygen wind tunnel facility
(Centre National d'Études Spatiales (CNES), 2018)
Conference lecture
Restricted access - publisher's policyA hyper-thermal orbital aerodynamics test facility is described. The Rarefied Orbital Aerodynamics Research facility(ROAR)is a dedicated apparatus designedto simulate the atmospheric flow in very low Earth orbits(VLEO) to ...