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A standard model for the investigation of aerodynamic and aerothermal loads on a re-usable launch vehicle

Bykerk, Tamas (2023) A standard model for the investigation of aerodynamic and aerothermal loads on a re-usable launch vehicle. In: 10th EUCASS - 9th CEAS 2023, pp. 1-12. 10th EUCASS - 9th CEAS 2023, 2023-07-09 - 2023-07-13, Lausanne, Switzerland. doi: 10.13009/EUCASS2023-018.

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Official URL: https://www.eucass.eu/doi/EUCASS2023-018.pdf


Aeronautical engineers have a long history of developing standardized models for wind tunnel calibrations and data comparisons between facilities. They are extremely useful in providing baseline datasets for correlation of results, data repeatability over time and verifying model installation or data acquisition systems. Reference models are also particularly relevant from the perspective of numerical analyses, where different assumptions and solver settings can be experimented with to determine solution sensitivity to certain parameters. A standardized reference model typically fulfills two main criteria. Firstly, they are simplistic in shape with a precisely defined geometry and secondly, they are representative of realistic configurations to ensure that the results are relevant. Examples of existing standard models include the AGARD-B, ONERA-M and the Standard Dynamics Model (SDM), which have been circulating for decades. Recently models such as the NASA CRM and the SSAM-Gen5 provide more up to date and relevant aircraft geometries from the past 10 to 20 years. While aeronautical engineers are well covered with standard aircraft models, the space community is not. Given the sudden and urgent interest in re-usable spacecraft over the past decade, a reference model which serves the research community in facilitating validation of numerical techniques in the generation of aerodynamic and aerothermal data over the entire trajectory is lacking. The purpose of this paper is to introduce a re-usable launch vehicle geometry where computational models and results will be made openly available to the research community. It is envisioned that this model will serve as a consistent validation case to promote collaboration and further research into the technical challenges associated with re-usable launch vehicles. This paper will first introduce the vehicle geometry and trajectory based on the flight path of in-service vehicles. Results from selected ascent and descent trajectory points will be presented and will contain aerodynamic coefficients and surface heating distributions. These are the first of many test cases which will look to address common questions with these types of vehicles, including but not limited to, surface heating through retro-propulsion and aerodynamic glide phases, plume-plume and plume-structure interactions, as well as vehicle stability and control.

Item URL in elib:https://elib.dlr.de/194475/
Document Type:Conference or Workshop Item (Speech)
Title:A standard model for the investigation of aerodynamic and aerothermal loads on a re-usable launch vehicle
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Bykerk, TamasUNSPECIFIEDhttps://orcid.org/0000-0001-8662-3484151392169
Date:July 2023
Journal or Publication Title:10th EUCASS - 9th CEAS 2023
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Page Range:pp. 1-12
EditorsEmailEditor's ORCID iDORCID Put Code
Keywords:re-usable, launcher, CFD
Event Title:10th EUCASS - 9th CEAS 2023
Event Location:Lausanne, Switzerland
Event Type:international Conference
Event Start Date:9 July 2023
Event End Date:13 July 2023
Organizer:EUCASS - CEAS
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 - Reusable Space Systems and Propulsion Technology
Location: Göttingen
Institutes and Institutions:Institute for Aerodynamics and Flow Technology > Spacecraft, GO
Deposited By: Bykerk, Tamas
Deposited On:19 Jul 2023 13:52
Last Modified:24 Apr 2024 20:55

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