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EXPERIMENTAL INVESTIGATION OF LIQUID SLOSHING IN A CRYO UPPER STAGE TANK DEMONSTRATOR IN

Darkow, Nicolas and Gerstmann, Jens and Arndt, T. (2013) EXPERIMENTAL INVESTIGATION OF LIQUID SLOSHING IN A CRYO UPPER STAGE TANK DEMONSTRATOR IN. DGLR Kongress, Sep. 2013, Stuttgart.

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Abstract

the shape of the tank bottom and for various fill level. The tank bottom shapes are given as flat bottom and convex formed bottom. The sloshing phenomena are investigated on a hexapod with 6 degrees of freedom movement. The model tank is mounted on the hexapod platform and partly filled with deionized water as test liquid. The platform can be forced to a defined motion. During the test the free surface behavior is recorded with a laser measurement system. The sloshing forces are measured with force transducers. Experimental results on eigenfrequency and damping ratio will be presented as function of fill level for both tank bottom shapes. The results show that there is a significant influence of the damping behavior for the different bottom shapes. A correlation will be presented and compared with data from literature. The experimental correlations are an important contribution for the understanding and consideration of sloshing effects for preliminary spacecraft design. Based on this work, the present tank demonstrator will be used in future to investigate the sloshing behavior of cryogenic propellants.

Item URL in elib:https://elib.dlr.de/87186/
Document Type:Conference or Workshop Item (Speech)
Title:EXPERIMENTAL INVESTIGATION OF LIQUID SLOSHING IN A CRYO UPPER STAGE TANK DEMONSTRATOR IN
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Darkow, NicolasNicolas.Darkow (at) dlr.deUNSPECIFIED
Gerstmann, JensJens.Gerstmann (at) dlr.deUNSPECIFIED
Arndt, T.Astrium TSUNSPECIFIED
Date:2013
Refereed publication:No
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:sloshing, damping, convex bottom, concave bottom, water
Event Title:DGLR Kongress
Event Location:Stuttgart
Event Type:international Conference
Event Dates:Sep. 2013
Organizer:DGLR
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:other
DLR - Research area:Raumfahrt
DLR - Program:R - no assignment
DLR - Research theme (Project):R - no assignment
Location: Bremen
Institutes and Institutions:Institute of Space Systems > Transport and Propulsion System
Deposited By: Trinh, Quynh
Deposited On:08 Jan 2014 11:05
Last Modified:12 Dec 2017 09:55

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