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STORT FLIGHT EXPERIMENT FOR HIGH SPEED TECHNOLOGY DEMONSTRATION

Gülhan, Ali und Willems, Sebastian und Klingenberg, Florian (2021) STORT FLIGHT EXPERIMENT FOR HIGH SPEED TECHNOLOGY DEMONSTRATION. international astronautical federation. 72nd International Astronatical Congress, 2021-10-25 - 2021-10-29, Dubai.

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Kurzfassung

Simulation based design of flight hardware is one of the longterm goals of the DLR’s research programs. In case of spacecraft development this task is very challenging, since the number of flight experiment and availability of the flight data is very limited. This requires a complementary validation approach using ground and flight testing for gathering reliable data and validation of numerical tools [1,2,3]. Numerical tools still have shortcomings in modelling high temperature gas phenomena and gas surface interaction in such an environment. This again requires data base on material characteristics in a very broad temperature range. Therefore, ground characterization and qualification of hot structures have to be carried out using modern diagnostic methods. Since ground experiments cannot duplicate the flight environment completely, performing successful flight experiments to achieve the a. m. goal is essential. The success of Space-X space transportation approach triggered a worldwide kick in reusable launcher activities. Multiple reuses of the most expensive first stage is the focus of most concepts. Recent studies show that reusability becomes feasible, if the separation of the first stage takes place at Mach numbers between 9 and 12. Simulation of this flight environment in ground facilities is limited and requires further data of flight experiments. Hypersonic flight experiments by means of multi stage sounding rocket configurations are the most cost-efficient options to gather valuable flight data. Using available two stage sounding rocket configurations the achievable Mach number for a payload mass of approx. 300 kg is limited to around 6. Therefore, the DLR’s flight experiment REFEX with the main focus in guidance and navigation during return flight will fly at Mach numbers from 5 down to subsonic speeds [4]. Therefore, aerothermal loads on hot structures are out of the REFEX goals. To close this gap and achieve higher Mach numbers the flight experiment STORT (Key Technologies for High Speed Return Flights of Launcher Stages) will use a three-stage sounding rocket configuration. In addition, the third stage will fly a suppressed trajectory to increase integral heat load on the structures.IAC-21,D2,6,5,x62714 2 of 10 The past DLR’s hypersonic flight experiments reached high numbers up to 10 [5, 6, 7]. But the test phase with high aerothermal loads were less than 30 seconds. Therefore, an additional maneuver will keep the third stage of the STORT configuration within a suppressed trajectory with high integral thermal loads. The main objectives of the STORT flight experiment will be described in the next chapter. After the explaining of main objectives of the STRORT flight experiment in the first chapter, the flight configuration with major payloads will be described. The flight trajectory and predicted aerothermal loads for the design of payloads and instrumentation follow this part. A big chapter is devoted to the experimental study concerning shock wave boundary layer interaction experiment (SWBLI) in the hypersonic wind tunnel H2K. The script will be concluded with the summary of major achievements until now and definition of next steps before the STORT flight experiment

elib-URL des Eintrags:https://elib.dlr.de/147493/
Dokumentart:Konferenzbeitrag (Vortrag, Anderer)
Titel:STORT FLIGHT EXPERIMENT FOR HIGH SPEED TECHNOLOGY DEMONSTRATION
Autoren:
AutorenInstitution oder E-Mail-AdresseAutoren-ORCID-iDORCID Put Code
Gülhan, AliAli.Guelhan (at) dlr.deNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Willems, SebastianSebastian.Willems (at) dlr.dehttps://orcid.org/0000-0002-5576-7829NICHT SPEZIFIZIERT
Klingenberg, Florianflorian.klingenberg (at) dlr.deNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Datum:Oktober 2021
Referierte Publikation:Nein
Open Access:Nein
Gold Open Access:Nein
In SCOPUS:Nein
In ISI Web of Science:Nein
Verlag:international astronautical federation
Status:veröffentlicht
Stichwörter:STORT, Hypersonic Flight Experiment, High Integral Heat Load, Thermal Management, Health Monitoring
Veranstaltungstitel:72nd International Astronatical Congress
Veranstaltungsort:Dubai
Veranstaltungsart:internationale Konferenz
Veranstaltungsbeginn:25 Oktober 2021
Veranstaltungsende:29 Oktober 2021
HGF - Forschungsbereich:Luftfahrt, Raumfahrt und Verkehr
HGF - Programm:Raumfahrt
HGF - Programmthema:Raumtransport
DLR - Schwerpunkt:Raumfahrt
DLR - Forschungsgebiet:R RP - Raumtransport
DLR - Teilgebiet (Projekt, Vorhaben):R - Schlüsseltechnologien für hochenergetische Rückkehrflüge der Trägerstufen (STORT)
Standort: Köln-Porz
Institute & Einrichtungen:Institut für Aerodynamik und Strömungstechnik > Über- und Hyperschalltechnologien, KP
Hinterlegt von: Jäger, Monika
Hinterlegt am:16 Dez 2021 11:00
Letzte Änderung:24 Apr 2024 20:46

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