Abstract
A study on sloshing characteristics in a rectangular tank, which is horizontally excited with a specific range of the Reynolds number, is approached numerically. The nonlinearity of sloshing flow is confirmed by comparing it with the linear solution based on the potential theory, and the time series results of the sloshing pressure are analyzed by Fast Fourier Transform (FFT) algorithm. Then, the pressure fluctuation phenomena are mainly observed and the magnitude of the amplitude spectrum is compared. The results show that, when the impact pressure is generated, large pressure fluctuation in a pressure cycle is observed, and the effects of the frequencies of integral multiples when the fundamental frequency appears dominantly in the sloshing flow.
Highlights
When a partially filled tank is subjected to disturbances from external sources, the liquid inside it undergoes motion called sloshing
The results show the sloshing pressureshapes variations for 0 to 30 s under the Reynolds ranges as shown in Table
The characteristics of sloshing pressures were investigated for various Reynolds number flow
Summary
When a partially filled tank is subjected to disturbances from external sources, the liquid inside it undergoes motion called sloshing. Sloshing is an interesting and important phenomenon with wide engineering applications and is of enormous practical and industrial interest It has been studied in the fields of sea transport (marine vehicles, LNG cargo etc.), land-transport (bulk cargo carriers etc.), air transport (rockets, space vehicles etc.) [1], and areas such as civil (storage tanks, dams etc.), chemical (industry, reactors, etc.), mechanical and nuclear engineering (nuclear vessels, nuclear reactors, etc.) [2]. Wu et al [7] utilized time independent FDM and numerically studied fluid sloshing in a 3D rectangular tank subjected to horizontal excitation. Nayak and Biswal [10] studied the seismic behavior of a partially filled rectangular tank with a Computation 2018, 6, 53; doi:10.3390/computation6040053 www.mdpi.com/journal/computation
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