期刊
AEROSPACE SCIENCE AND TECHNOLOGY
卷 90, 期 -, 页码 452-462出版社
ELSEVIER FRANCE-EDITIONS SCIENTIFIQUES MEDICALES ELSEVIER
DOI: 10.1016/j.ast.2019.04.022
关键词
Particle Image Velocimetry; Sloshing; Cryogenics; Damping
资金
- Fonds de la Recherche Scientifique (F.R.S. - FNRS)
- European Space Agency (GSTP) [4000105841/12/NL/NA]
Cryogenic sloshing is of primary importance in aerospace propulsion since it can affect the dynamic stability and the propellant management during each phase of spacecraft missions. We show in this work, for the first time, that cryogenic sloshing can be investigated by means of tracer-based laser techniques, such as Particle Image Velocimetry (PIV), to obtain the liquid/gas interface and the bulk velocity both in the unsteady and steady regime. The fluid heating due to the laser interaction with the tracer particles and the possible effect on the particle-fluid slip velocity is evaluated. An experimental campaign is conducted, and both the liquid/gas interface position and the velocity maps of the bulk are obtained in time-resolved conditions. Finally, the logarithmic damping at the liquid/gas interface and in the bulk are evaluated and compared with satisfactory results to the models available in the literature. (C) 2019 Elsevier Masson SAS. All rights reserved.
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