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Computation 2018, 6(4), 53; https://doi.org/10.3390/computation6040053

Numerical Study on Sloshing Characteristics with Reynolds Number Variation in a Rectangular Tank

1
Department of Mechanical Design Engineering, Pukyong National University, Busan 48513, Korea
2
Interdisciplinary Program of Biomedical Mechanical & Electrical Engineering, Pukyong National University, Busan 48513, Korea
3
Division of Mechanical and Space Engineering, Hokkaido University, Sapporo 060-0808, Japan
*
Author to whom correspondence should be addressed.
Received: 15 August 2018 / Revised: 8 October 2018 / Accepted: 9 October 2018 / Published: 12 October 2018
(This article belongs to the Special Issue Computational Heat, Mass and Momentum Transfer)
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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. View Full-Text
Keywords: sloshing; FFT analysis; Reynolds number; rectangular tank; multiphase flow; computational fluid dynamics; sloshing impact pressure sloshing; FFT analysis; Reynolds number; rectangular tank; multiphase flow; computational fluid dynamics; sloshing impact pressure
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Kim, H.; Dey, M.K.; Oshima, N.; Lee, Y.W. Numerical Study on Sloshing Characteristics with Reynolds Number Variation in a Rectangular Tank. Computation 2018, 6, 53.

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