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Progress in Aerodynamic Studies for CALLISTO - Reusable VTVL Launcher First Stage Demonstrator

Klevanski, Josef and Reimann, Bodo and Krummen, Sven and Ertl, Moritz and Ecker, Tobias and Riehmer, Johannes and Dumont, Etienne (2022) Progress in Aerodynamic Studies for CALLISTO - Reusable VTVL Launcher First Stage Demonstrator. 9TH EUROPEAN CONFERENCE FOR AEROSPACE SCIENCES (EUCASS), 2022-06-27 - 2022-07-01, Lille, Frankreich. (Submitted)

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Reusability applied to launchers is expected to reduce costs for access to space and to increase the operational flexibility. DLR, CNES and JAXA are jointly developing a vertical take-off and landing (VTVL) reusable subscaled first stage demonstrator with the objective to improve knowledge in this field. With this vehicle, called CALLISTO (Cooperative Action Leading to Launcher Innovation in Stage Toss back Operations), DLR, CNES and JAXA want to acquire and demonstrate the capability to launch, land and relaunch a vehicle under conditions representative for the first stage of an operational launch vehicle. Furthermore, during CALLISTO demonstration flights, data will be gathered to improve knowledge on the operation of a reusable vehicle which will help to optimize the reusability capabilities of future launch systems [1-2]. The entire CALLISTO reference mission is complex and includes many flight phases: ascent, boost-back manoeuvre, descent and landing during which the aerodynamic shape and the thrust level are changing radically. For instance, the simulation of the retro-propulsion plume is of particular importance, as it has a major impact on the base pressure distribution and aerothermal loads. In order to refine the requirements in preparation for the product preliminary design review (Product PDR), extensive aerodynamic analyses and tests have been performed [3-4]. The key challenge is to create an extensive aerodynamic data base covering all the flight configurations and conditions which than can be used for 6-DoF flight dynamics simulation, considering the complex aerodynamic shape of the demonstrator with limited computing resources. Indeed, the aerodynamic performance plays a central role in the global performance of CALLISTO. The use of classic engineering aerodynamic prediction methods cannot provide the precision and reliability necessary for the estimation of the aerodynamic coefficients. It is necessary to use a combination of models and CFD methods of different complexity. Another important aspect is the estimation of the uncertainties, based on the comparison of results calculated by different CFD methods as well as experimental results obtained in wind tunnels [5-7]. This paper will describe the concept and structure of the aerodynamic data base as well as the methods used for the calculation. The main findings of the aerodynamic analysis and the progress made during the CALLISTO project will be presented.

Item URL in elib:https://elib.dlr.de/187069/
Document Type:Conference or Workshop Item (Speech)
Title:Progress in Aerodynamic Studies for CALLISTO - Reusable VTVL Launcher First Stage Demonstrator
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Klevanski, JosefUNSPECIFIEDhttps://orcid.org/0009-0002-4336-1116UNSPECIFIED
Reimann, BodoUNSPECIFIEDhttps://orcid.org/0000-0001-7765-7295UNSPECIFIED
Krummen, SvenUNSPECIFIEDhttps://orcid.org/0000-0002-4126-688XUNSPECIFIED
Ertl, MoritzUNSPECIFIEDhttps://orcid.org/0000-0002-1900-5122UNSPECIFIED
Ecker, TobiasUNSPECIFIEDhttps://orcid.org/0000-0001-7134-1185UNSPECIFIED
Dumont, EtienneUNSPECIFIEDhttps://orcid.org/0000-0003-4618-0572UNSPECIFIED
Date:June 2022
Refereed publication:No
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:No
Keywords:CALLISTO, Reusability, demonstrator, VTVL, Retro-Propulsion, Aerodynamics, Aerothermodynamics, database
Event Location:Lille, Frankreich
Event Type:international Conference
Event Start Date:27 June 2022
Event End Date:1 July 2022
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Transportation
DLR - Research area:Raumfahrt
DLR - Program:R RP - Space Transportation
DLR - Research theme (Project):R - Project CALLISTO [RP]
Location: Köln-Porz
Institutes and Institutions:Institute for Aerodynamics and Flow Technology > Supersonic and Hypersonic Technology
Institute for Aerodynamics and Flow Technology > Spacecraft, BS
Institute for Aerodynamics and Flow Technology > Spacecraft, GO
Institute of Space Systems > Systems Engineering and Project Office
Deposited By: Klevanski, Josef
Deposited On:30 Jun 2022 09:02
Last Modified:24 Apr 2024 20:48

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