Author(s): K. V. Sahaj; Shwetha Shri; T. Nasar

Linked Author(s):

Keywords: Sloshing oscillation; Sloshing dynamics; Excitation frequencies; Sloshing force

Abstract: An experimental shake table program is performed to explore the hydrodynamic behavior of liquid sloshing phenomena in a partially filled rectangular tank of 1:43 scaled tank subjected to sway excitation. Three different aspect ratios (hs/l, liquid depth, hs to the length of the tank, l) of 0.163, 0.325 and 0.488 which corresponds to 25%, 50% and 75% fill depths are considered. Excitation parameters such as frequencies ranging from 0.45 to 3.2 Hz which encompasses up to fifth mode of sloshing frequency and amplitudes of 4 and 8 mm are considered. An experimental setup is designed and devised to measure the sloshing force by using ballast mass concept. The experimental parameters such as run-up of sloshing oscillation, sloshing force and spectral energy are discussed. Experimental results of sloshing oscillation are compared with the numerical works of Nasar et al. (J Nav Archit Mar Eng 9:43–65, 2012). The present study reveals that the effect of excitation on sloshing oscillation is more pronounced near first mode of resonance and insignificant at off-resonance conditions. The effect of excitation amplitude on the fill level is pronounced in the order of 50, 25 and 75% fill levels on sloshing oscillation, sloshing force and spectral energy. The sloshing force is found to be about 9.32, 26.03 and 26.43 N for the excitation parameters of forcing frequency (f) that equals to first mode sloshing frequency (f1) and amplitude of excitation A = 8 mm. The sloshing tank with 75% fill depth experiences more sloshing force on its containment than 25 and 50% fill depths.

DOI: https://doi.org/10.1007/978-981-97-6009-1_64

Year: 2022