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dc.contributor.authorOiko, Vitor
dc.contributor.authorRoberts, Peter C.E
dc.contributor.authorMacario Rojas, Alejandro
dc.contributor.authorGarcía-Almiñana, Daniel
dc.contributor.authorGarcía Berenguer, Marina
dc.contributor.authorRodríguez Donaire, Silvia
dc.contributor.authorSureda Anfres, Miquel
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament d'Enginyeria de Projectes i de la Construcció
dc.contributor.otherUniversitat Politècnica de Catalunya. Doctorat en Enginyeria Mecànica, Fluids i Aeronàutica
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Física
dc.date.accessioned2020-10-13T14:13:43Z
dc.date.issued2020
dc.identifier.citationOiko, V. [et al.]. Ground-based experimental facility for orbital aerodynamics research: design, construction and characterisation. A: International Astronautical Congress. "Proceedings of the International Astronautical Congress". International Astronautical Federation, 2020, p. 1-6. ISBN 00741795.
dc.identifier.isbn00741795
dc.identifier.urihttp://hdl.handle.net/2117/330173
dc.description.abstractIn very low Earth orbits (VLEO), below 450 km altitude, the aerodynamic properties of satellites are primarily determined by the flow regime, free molecular flow, and the interaction of atomic oxygen with the surfacesof the spacecraft. The Rarefied Orbital Aerodynamics Research (ROAR) facility is a novel experimental facility designed to simulate these conditions in a controlled environment to characterise the aerodynamic properties of materials. It is built as part of DISCOVERER, a Horizon 2020 project developing the different technologies required to enable the sustainable operation of satellites in VLEO. Because ROAR isn’t intended to perform erosion studies, it differs quite significantly from other atomic oxygen exposure experiments and its characteristics are discussed in this work. ROAR consists of an ultrahigh vacuum system, responsible for generating the free molecular flow conditions, a source of hyperthermal oxygen atoms at orbital velocities, and mass spectrometers; the latter used to characterise the gas-surface interactions, and therefore the material’s aerodynamic performance. This paperincludesa description of ROAR’s main components, together with the experimental methodology for materials testing and early results. Among the main parameters to be considered are atomic oxygen flux, beam shape and energy spread, mass resolution, and signal-to-noise ratio.
dc.description.sponsorshipThis project has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 737183. This publication reflects only the author's view.
dc.format.extent6 p.
dc.language.isoeng
dc.publisherInternational Astronautical Federation
dc.subjectÀrees temàtiques de la UPC::Enginyeria de la telecomunicació::Radiocomunicació i exploració electromagnètica::Satèl·lits i ràdioenllaços
dc.subjectÀrees temàtiques de la UPC::Física::Astronomia i astrofísica
dc.subject.lcshArtificial satellites--Design and construction
dc.subject.lcshVacuum
dc.subject.lcshMass spectrometry
dc.subject.otherAtomic oxygen
dc.subject.otherVery low Earth Orbit
dc.subject.otherGas-surface interactions
dc.subject.otherFree molecular flow
dc.subject.otherVacuum
dc.subject.otherMass spectrometry
dc.titleGround-based experimental facility for orbital aerodynamics research: design, construction and characterisation
dc.typeConference lecture
dc.subject.lemacSatèl·lits artificials -- Disseny i construcció
dc.subject.lemacBuit
dc.subject.lemacEspectrometria de masses
dc.contributor.groupUniversitat Politècnica de Catalunya. TUAREG - Turbulence and Aerodynamics in Mechanical and Aerospace Engineering Research Group
dc.contributor.groupUniversitat Politècnica de Catalunya. L'AIRE - Laboratori Aeronàutic i Industrial de Recerca i Estudis
dc.rights.accessRestricted access - publisher's policy
local.identifier.drac29548352
dc.description.versionPostprint (published version)
dc.relation.projectidinfo:eu-repo/grantAgreement/EC/H2020/737183/EU/DISCOVERER – DISruptive teChnOlogies for VERy low Earth oRbit platforms/DISCOVERER
dc.date.lift10000-01-01
local.citation.authorOiko, V.; Roberts, P.; Macario, A.; Garcia-Almiñana, Daniel; García, M.; Rodriguez-Donaire, S.; Sureda, M.
local.citation.contributorInternational Astronautical Congress
local.citation.publicationNameProceedings of the International Astronautical Congress
local.citation.startingPage1
local.citation.endingPage6


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