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Functional and thermal 1D modeling of a reusable LH2-tank using EcosimPro/ESPSS and comparison to CFD results

Opp, Lukas and Scheufler, Henning and Stief, Malte and Gerstmann, Jens (2022) Functional and thermal 1D modeling of a reusable LH2-tank using EcosimPro/ESPSS and comparison to CFD results. 8th Space Propulsion Conference, 2022-05-09 - 2022-05-13, Estoril, Portugal.

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Abstract

The CALLISTO reusable vertical take-off and vertical landing prototype vehicle (VTVL) is a joint project between CNES, DLR and JAXA. In order to analyze the operational processes and thermal behavior at a system level within the scope of the liquid hydrogen tank of the CALLISTO vehicle, a 1D thermal and hydraulic model of the LH2 tank has been developed which is taking the thermal environment of the mission into account. The model features the capability to simulate the entire mission from initial tank chill down, propellant loading, boil-off venting and pressurization to postflight residual propellant venting. This way the required propellant mass, boil-off rates and heat fluxes to the structure can be evaluated and their impact on the overall mission can be analyzed. In order to correlate the effect of external forces on propellant sloshing but also to predict the pressurant budget and thermal residuals, data from dedicated CFD simulations has been used. The combination of multiple tools enables a more detailed understanding of all effects that have an impact on thermal and hydraulic behavior of the LH2 tank system during the mission. This paper compares both approaches, shows the advantages each has and their limits.

Item URL in elib:https://elib.dlr.de/187031/
Document Type:Conference or Workshop Item (Speech)
Title:Functional and thermal 1D modeling of a reusable LH2-tank using EcosimPro/ESPSS and comparison to CFD results
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Opp, LukasUNSPECIFIEDhttps://orcid.org/0000-0002-6791-4267133864583
Scheufler, HenningUNSPECIFIEDhttps://orcid.org/0000-0003-1578-9772UNSPECIFIED
Stief, MalteUNSPECIFIEDhttps://orcid.org/0000-0002-8371-4054UNSPECIFIED
Gerstmann, JensUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Date:11 May 2022
Refereed publication:No
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:propellant management, CALLISTO, liquid hydrogen, tank, reusability, thermal, functional, 1D modelling, CFD
Event Title:8th Space Propulsion Conference
Event Location:Estoril, Portugal
Event Type:international Conference
Event Start Date:9 May 2022
Event End Date:13 May 2022
Organizer:3AF
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: Bremen
Institutes and Institutions:Institute of Space Systems > Transport and Propulsion System
Deposited By: Opp, Lukas
Deposited On:27 Jun 2022 11:44
Last Modified:24 Apr 2024 20:48

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