Effect of External Heat Input on Fluid Sloshing Dynamic Performance in a Liquid Oxygen Tank
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ORIGINAL PAPER
Effect of External Heat Input on Fluid Sloshing Dynamic Performance in a Liquid Oxygen Tank Zhan Liu1
· Yuyang Feng2 · Yuanliang Liu1 · Jia Yan3 · Yanzhong Li2
Received: 7 August 2019 / Revised: 26 December 2019 / Accepted: 20 February 2020 © The Korean Society for Aeronautical & Space Sciences 2020
Abstract In the present study, a numerical model is developed to research the effect of the heat input on fluid sloshing. The volume of fluid method is used to simulate fluid reciprocating motion during sloshing with the mesh motion treatment being coupled. The external sloshing excitation is realized by user-defined functions and the convection thermal boundary condition is adopted to consider the heat exchange between the tank and the external environment. The model validation is made with the relative error being less than five percent. Based on the developed numerical model, the variation of fluid pressure, interface fluctuation, fluid sloshing hydrodynamics and fluid temperature distribution are, respectively, analyzed. Some conclusions are obtained finally. The present study is significant to the fluid sloshing suppression in cryogenic fuel storage tanks. Keywords Fluid sloshing dynamics · Heat input · Sloshing hydrodynamics · Liquid oxygen tank
1 Introduction Fluid sloshing usually causes some unpredictable consequences on the vehicle transportation system, civil engineering, aerospace engineering and energy engineering. Some undesired effects, including the additional sloshing force, the thermodynamic imbalances, the tank pressure rapid drop, the transmission of pressure waves, and the horizontal vibration, may bring serious safety issues for the operation of the aerospace mission. Due to the wide using of cryogenic fuels on aerospace engineering, the thermodynamic imbalance within storage tanks and hydrodynamic issues caused by fluid sloshing become increasingly obvious. Hence, some depth investigations should be conducted to effectively control fluid sloshing and improve the success proportion of aerospace mission.
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Zhan Liu [email protected]
1
State Key Laboratory for Geomechanics and Deep Underground Engineering, School of Mechanics and Civil Engineering, China University of Mining and Technology, Xuzhou 221116, China
2
School of Energy and Power Engineering, Xi’an Jiaotong University, Xi’an 710049, China
3
School of Civil Engineering and Architecture, Southwest University of Science and Technology, Mianyang 621010, China
Investigators have conducted extensive research on fluid sloshing and obtained some important achievements. Peterson et al. [1] investigated the dynamics of a linear spacecraft in a cylindrical tank. The nonlinear low-gravity fluid sloshing was coupled and considered. The analytical predictions by the developed model were substantiated by experiments. Modaressi-Tehrani et al. [2] conducted detailed analysis of transient fluid sloshing within a partly filled tank by building one three-dimensional numerical model. The effect of baffles on fluid sloshing was
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