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ExoMars Flush Air Data System: Entry Simulation and Atmospheric Reconstruction Method

Van Hove, Bart and Karatekin, Ozgur and Schleutker, Thorn and Gülhan, Ali (2019) ExoMars Flush Air Data System: Entry Simulation and Atmospheric Reconstruction Method. Journal of Spacecraft and Rockets. American Institute of Aeronautics and Astronautics (AIAA). DOI: 10.2514/1.A34187 ISSN 0022-4650

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Official URL: https://arc.aiaa.org/doi/full/10.2514/1.A34187

Abstract

Flight data recorded during atmospheric entry with forebody pressure instrumentation, referred to as a flush air data system (FADS), provide valuable measurements for the reconstruction of the trajectory and in situ atmospheric conditions. We present a method to reconstruct the angle of attack; sideslip angle; and atmospheric density, pressure, and temperature in support of the postflight analysis for the ExoMars Entry, Descent, and Landing Demonstrator Module (EDM), named Schiaparelli. Numerical predictions of the forebody surface pressure distribution, required as input to the FADS reconstruction, were developed in a companion paper. Here, we demonstrate the FADS method in a hypersonic wind tunnel at Mach 5 to 7 and study theoretical FADS reconstruction performance along a simulated along a simulated entry trajectory. The main error sources identified are unobserved winds and measurement bias errors; the latter are exacerbated by the limited number of pressure ports on the EDM.

Item URL in elib:https://elib.dlr.de/128561/
Document Type:Article
Title:ExoMars Flush Air Data System: Entry Simulation and Atmospheric Reconstruction Method
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Van Hove, Bartbartvh (at) observatory.beUNSPECIFIED
Karatekin, Ozgurozgur.karatekin (at) observatory.beUNSPECIFIED
Schleutker, ThornThorn.Schleutker (at) dlr.dehttps://orcid.org/0000-0002-1833-2850
Gülhan, AliAli.Guelhan (at) dlr.deUNSPECIFIED
Date:2 June 2019
Journal or Publication Title:Journal of Spacecraft and Rockets
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
DOI :10.2514/1.A34187
Publisher:American Institute of Aeronautics and Astronautics (AIAA)
ISSN:0022-4650
Status:Published
Keywords:ExoMars, Schiaparelli, FADS, Atmospheric Entry, Atmospheric Reconstruction, Flush Airdata System, FADS, Supersonic, Hypersonic
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Technology
DLR - Research area:Raumfahrt
DLR - Program:R SY - Technik für Raumfahrtsysteme
DLR - Research theme (Project):R - Raumflugbetrieb / Missionstechnologie
Location: Köln-Porz
Institutes and Institutions:Institute for Aerodynamics and Flow Technology > Supersonoc and Hypersonic Technology
Deposited By: Schleutker, Thorn
Deposited On:07 Aug 2019 14:11
Last Modified:07 Aug 2019 14:11

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