Effects of excitation angle and coupled heave–surge–sway motion on fluid sloshing in a three-dimensional tank

Analysis on Shift of Nature Modes of Liquid Sloshing in a 3D Tank Subjected to Oblique Horizontal Ground Motions with Damping Devices

“…All computations use the dimensionless equations in the --coordinate system. All the numerical results presented in this work are in the dimensionless form [28], and the dimensionless equations can be referred to [24,29] that are omitted in the text. Central difference approximations are used for the space derivatives, except at the boundary where the fictitious cell approach [24,27] is employed.…”

“…The Crank-Nicholson second order finite difference scheme and the Gauss-Seidel point successive overrelaxation iterative procedure are used to calculate the velocity and pressure, respectively. The detailed numerical scheme is similar to that reported [24,28,29] and is omitted here.…”

“…As a 3D baffled tank is subjected to oblique horizontal excitation, the coupled effect of nature modes of sloshing waves will be triggered. Wu and Chen [28,29] reported that the types of sloshing waves in a 3D tank under various excitation angles and frequencies are the single-directional wave, square-like wave, swirling wave, and irregular wave, and these waves can be triggered by the specific excited frequencies of 0.9 1 , 1.5 1 , 1.0 1 , and 2 1 , respectively. In the following subsections, the effect of the baffle of a fixed height = 0.5 0 on the shift of natural modes of different types of sloshing waves for a 3D tank under oblique excitation is discussed in detail.…”

Analysis of liquid sloshing in LNG carrier with wedge-shaped tanks

“…Unlike massive studies for sloshing in rectangular or cylindrical containers (e.g. Wu et al (1998), Chern et al (1999), Celebi and Akyildiz (2002), Turnbull et al (2003), Frandsen (2004), Kishev et al (2006), Chen et al (2007), Liu and Lin (2008), Chen and Wu (2011) and Zhang et al (2015)), such wedge-shaped tanks are rarely investigated from the open literature. The present study aims to help filling this gap.…”

Dynamics of vortex evolution in a 2D baffled tank

“…The iterative procedure is associated with the accuracy of the numerical results and the convergence speed of the present numerical scheme. In order to reduce the iterative numbers of each time step, a developed new iterative procedure similar to SIMPLEC algorithm is used [25] and a special treatment of iterative procedure on the implicit part of Crank-Nicholson scheme was implemented.…”