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Analysis of Cryogenic Propellant Tank Pressurization based upon Experiments and Numerical Simulations

Ludwig, Carina (2014) Analysis of Cryogenic Propellant Tank Pressurization based upon Experiments and Numerical Simulations. Dissertation, University of Bremen.

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Official URL: https://d-nb.info/1058194062

Abstract

Analysis of Cryogenic Propellant Tank Pressurization based upon Experiments and Numerical Simulations / von Carina Ludwig Focus of this study is the pressurization system of a cryogenic liquid propellant tank for the launcher application. Objective of the pressurization system is to provide the required pressure evolution in the propellant tank for a proper operation of the engine. The motivation of this study is an improved understanding of the complex fluid-dynamic and thermodynamic phenomena during the active-pressurization process of cryogenic propellants in order to optimize the on-board pressurant gas mass. Therefore ground experiments, numerical simulations and analytical considerations were performed for the investigation of the initial active-pressurization phase. For the performed experiments, liquid nitrogen was used as cryogenic model propellant, which was actively pressurized under normal gravity conditions up to different final tank pressures. As pressurant gases, gaseous nitrogen and gaseous helium were used with different inlet temperatures. For the numerical analyses the commercial CFD program Flow-3D, a three-dimensional Navier-Stokes equation solver, was used.

Item URL in elib:https://elib.dlr.de/105611/
Document Type:Thesis (Dissertation)
Title:Analysis of Cryogenic Propellant Tank Pressurization based upon Experiments and Numerical Simulations
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Ludwig, CarinaUNSPECIFIEDUNSPECIFIED
Date:8 August 2014
Journal or Publication Title:Cuvillier Verlag Göttingen
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Number of Pages:157
Status:Published
Keywords:Kryogener Raketentreibstoff ; Kraftstofftank ; Thermodynamisches System ; Druckregelung ; Numerische Strömungssimulation
Institution:University of Bremen
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Transport
DLR - Research area:Raumfahrt
DLR - Program:R RP - Raumtransport
DLR - Research theme (Project):R - Raumfahrzeugsysteme - Systemanalyse Raumtransport
Location: Bremen
Institutes and Institutions:Institute of Space Systems > Space Launcher Systems Analysis
Deposited By: Vormschlag, Nele Marei
Deposited On:10 Aug 2016 10:47
Last Modified:07 Feb 2018 13:03

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