Abstract:Liquid sloshing is a common phenomenon that can cause instabilities in aircraft, can damage the tanks, and can complicate liquid level monitoring. Therefore, sloshing suppression has been extensively studied. The most common method is to arrange baffles in the tanks. The porous media model based on Darcy's law provides a simple method for simulating flows in tanks with porous baffles. In this study, experimental data was used to verify the reliability of numerical simulations used to investigate the influence of various immersion depths of horizontal porous baffles on liquid sloshing for low-frequency, large-amplitude sloshing conditions. The results show that the sloshing crests and troughs change more with higher sloshing crests because of the baffles in some cases. The baffles disturb the liquid surface which make the liquid surface oscillate more than without baffles. Thus, the baffles increasing the liquid sloshing in some cases.
张展博, 李胜强. 圆柱水箱中水平多孔挡板对液面晃动影响的数值模拟研究[J]. 清华大学学报(自然科学版), 2018, 58(10): 934-940.
ZHANG Zhanbo, LI Shengqiang. Numerical simulation study of the effects of horizontal porous baffles on liquid sloshing in a cylindrical tank. Journal of Tsinghua University(Science and Technology), 2018, 58(10): 934-940.
[1] MOLIN B, REMY F, ARNAUD G, et al. On the dispersion equation for linear waves traveling through or over dense arrays of vertical cylinders[J]. Applied Ocean Research, 2016, 61:148-155. [2] IRANMANESH A, PASSANDIDEH-FARD M. A 2D numerical study on suppressing liquid sloshing using a submerged cylinder[J]. Ocean Engineering, 2017, 138:55-72. [3] STRAND I M, FALTINSEN O M. Linear sloshing in a 2D rectangular tank with a flexible sidewall[J]. Journal of Fluids & Structures, 2017, 73:70-81. [4] TURNER M R. Liquid sloshing in a horizontally forced vessel with bottom topography[J]. Journal of Fluids & Structures, 2016, 64:1-26. [5] LUO M, KOH C G, BAI W. A three-dimensional particle method for violent sloshing under regular and irregular excitations[J]. Ocean Engineering, 2016, 120:52-63. [6] CHO I H, KIM M H. Effect of dual vertical porous baffles on sloshing reduction in a swaying rectangular tank[J]. Ocean Engineering, 2016, 126:364-373. [7] CHO I H, CHOI J S, Kim M H. Sloshing reduction in a swaying rectangular tank by an horizontal porous baffle[J]. Ocean Engineering, 2017, 138:23-34. [8] FALTINSEN O M, TIMOKHA A N. Natural sloshing frequencies and modes in a rectangular tank with a slat-type screen[J]. Journal of Sound & Vibration, 2011, 330(7):1490-1503. [9] FALTINSEN O M, FIROOZKOOHI R, TIMOKHA A N. Steady-state liquid sloshing in a rectangular tank with a slat-type screen in the middle:Quasilinear modal analysis and experiments[J]. Physics of Fluids, 2011, 23(4):1058. [10] FALTINSEN O M, FIROOZKOOHI R, TIMOKHA A N. Analytical modeling of liquid sloshing in a two-dimensional rectangular tank with a slat screen[J]. Journal of Engineering Mathematics, 2011, 70(1-3):93-109. [11] FALTINSEN O M, FIROOZKOOHI R, TIMOKHA A N. Effect of central slotted screen with a high solidity ratio on the secondary resonance phenomenon for liquid sloshing in a rectangular tank[J]. Physics of Fluids, 2011, 23(6):042101. [12] AKYILDIZ H. A numerical study of the effects of the vertical baffle on liquid sloshing in two-dimensional rectangular tank[J]. Journal of Sound & Vibration, 2012, 331(1):41-52. [13] JUNG J H, YOON H S, LEE C Y, et al. Effect of the vertical baffle height on the liquid sloshing in a three-dimensional rectangular tank[J]. Ocean Engineering, 2012, 44(1):79-89. [14] WANG W, PENG Y, ZHOU Y, et al. Liquid sloshing in partly-filled laterally-excited cylindrical tanks equipped with multi baffles[J]. Applied Ocean Research, 2016, 59:543-563. [15] YANG Q, JONES V, MCCUE L. Free-surface flow interactions with deformable structures using an SPH-FEM model[J]. Ocean Engineering, 2012, 55(15):136-147. [16] CHEN Z, ZONG Z, LI H T, et al. An investigation into the pressure on solid walls in 2D sloshing using SPH method[J]. Ocean Engineering, 2013, 59(2):129-141. [17] BRAR G S, SINGH S. An experimental and CFD analysis of sloshing in a tanker[J]. Procedia Technology, 2014, 14(4):490-496. [18] JIN H, LIU Y, LI H J. Experimental study on sloshing in a tank with an inner horizontal perforated plate[J]. Ocean Engineering, 2014, 82(2):75-84. [19] REBOUILLAT S, LIKSONOV D. Fluid-structure interaction in partially filled liquid containers:A comparative review of numerical approaches[J]. Computers & Fluids, 2010, 39(5):739-746. [20] HIRT C W, NICHOLS B D. Volume of fluid (VOF) method for the dynamics of free boundaries[J]. Journal of Computational Physics, 1981, 39(1):201-225. [21] WHITAKER S. Flow in porous media I:A theoretical derivation of Darcy's law[J]. Transport in Porous Media, 1986, 1(1):3-25. [22] TAIT M J, EL DAMATTY A A, ISYUMOV N, et al. Numerical flow models to simulate tuned liquid dampers (TLD) with slat screens[J]. Journal of Fluids & Structures, 2005, 20(8):1007-1023. [23] ZHAO W, YANG J, HU Z, et al. Hydrodynamics of a 2D vessel including internal sloshing flows[J]. Ocean Engineering, 2014, 84(4):45-53.