CLC number: U661.7
On-line Access: 2018-10-08
Received: 2017-05-18
Revision Accepted: 2017-12-07
Crosschecked: 2018-08-16
Cited: 0
Clicked: 4548
Ge Liu, Yan Lin, Guan Guan, Yan-yun Yu. Numerical research on the anti-sloshing effect of a ring baffle in an independent type C LNG tank[J]. Journal of Zhejiang University Science A,in press.Frontiers of Information Technology & Electronic Engineering,in press.https://doi.org/10.1631/jzus.A1700268 @article{title="Numerical research on the anti-sloshing effect of a ring baffle in an independent type C LNG tank", %0 Journal Article TY - JOUR
Abstract: In this manuscript, the authors presented their numerical and experimental findings of antisloshing effect of ring baffle in LNG tank at different conditions in cylindrical vessel subjected to pitch excitation. They have studied the effectiveness of ring type baffle in terms of position, height and orientation of the baffle by monitoring the slosh induced pressure as quantitative measure. The snapshots of liquid free-surface were compared against their experimental findings.
LNG独立C型罐制荡环的制荡效应数值研究创新点:1. 通过正交设计与数值模拟的结合,得到影响环形挡板制荡效率的主要因素. 2. 结合正交试验的分析结果及环形挡板制荡机理数值分析,得出改进环形挡板制荡效率的方案. 方法:1. 通过物理试验对数值模拟方法进行验证; 2. 通过正交试验设计,制定环形挡板参数的数值试验表(表7),并根据计算结果,对参数的制荡效率影响进行分析(表8和9); 3. 对主影响参数进行重点分析,得出其制荡效率的变化规律(图19); 4. 对环形挡板的制荡机理进行分析,并对正交试验结果中各参数水平的影响进行验证. 结论:1. 环形挡板的高度、倾斜角度以及安装位置均对其制荡效率有显著影响,而环形挡板的厚度影响较小. 2. 环形挡板的4个参数中,高度因素的影响效果最显著,但是,当高度增至罐体直径的20%时,制荡效率提升速度变得不明显. 3. 相比于倾斜挡板会产生较多涡流耗散,当环形挡板处于竖直状态时,其较强的阻隔效应可以提供更多的制荡效果;挡板倾斜的方向对制荡效果有一定的影响,但该影响会随着倾斜角度的增大而减小. 4. 增大两个环形挡板的间距,将增加自由液面的长度,并延缓挡板约束流速的效率,从而减弱挡板的制荡效果. 关键词组: Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article
Reference[1]Akyıldız H, Erdem Ünal N, Aksoy H, 2013. An experimental investigation of the effects of the ring baffles on liquid sloshing in a rigid cylindrical tank. Ocean Engineering, 59:190-197. [2]Bouscasse B, Antuono M, Colagrossi A, et al., 2013. Numerical and experimental investigation of nonlinear shallow water sloshing. International Journal of Nonlinear Sciences and Numerical Simulation, 14(2):123-138. [3]Celebi MS, Akyildiz H, 2002. Nonlinear modeling of liquid sloshing in a moving rectangular tank. Ocean Engineering, 29(12):1527-1553. [4]Cho IH, Kim MH, 2016. Effect of dual vertical porous baffles on sloshing reduction in a swaying rectangular tank. Ocean Engineering, 126:364-373. [5]Delorme L, Colagrossi A, Souto-Iglesias A, et al., 2009. A set of canonical problems in sloshing, Part I: pressure field in forced roll-comparison between experimental results and SPH. Ocean Engineering, 36(2):168-178. [6]Faltinsen OM, Timokha AN, 2009. Sloshing. Cambridge University Press, Cambridge, UK. [7]Jiang MR, Ren B, Wang GY, et al., 2014. Laboratory investigation of the hydroelastic effect on liquid sloshing in rectangular tanks. Journal of Hydrodynamics, Ser. B, 26(5):751-761. [8]Kang N, Liu K, 2010. Influence of baffle position on liquid sloshing during braking and turning of a tank truck. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 11(5):317-324. [9]Kim HS, Lee YS, 2008. Optimization design technique for reduction of sloshing by evolutionary methods. Journal of Mechanical Science and Technology, 22(1):25-33. [10]Liu G, Lin Y, Guan G, et al., 2017. Experimental study of sloshing pattern on LNG independent C type tank. Journal of Dalian University of Technology, 57(5):467-475 (in Chinese). [11]Lloyd N, Vaiciurgis E, Langrish TAG, 2002. The effect of baffle design on longitudinal liquid movement in road tankers: an experimental investigation. Process Safety and Environmental Protection, 80(4):181-185. [12]Lu Y, Hu AK, Liu YC, et al., 2016. A meshless method based on moving least squares for the simulation of free surface flows. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 17(2):130-143. [13]Panigrahy PK, Saha UK, Maity D, 2009. Experimental studies on sloshing behavior due to horizontal movement of liquids in baffled tanks. Ocean Engineering, 36(3-4):213-222. [14]Sanapala VS, Velusamy K, Patnaik BSV, 2016. CFD simulations on the dynamics of liquid sloshing and its control in a storage tank for spent fuel applications. Annals of Nuclear Energy, 94:494-509. [15]SETC (State Economic and Trade Commission), 2002. Formed Heads for Steel Pressure Vessels, JB/T 4746-2002. National Standard of the People’s Republic of China (in Chinese). [16]Souto-Iglesias A, Botia-Vera E, Martín A, et al., 2011. A set of canonical problems in sloshing. Part 0: experimental setup and data processing. Ocean Engineering, 38(16):1823-1830. [17]Wang DY, Jin XD, Li LY, 1998. On model experiment of sloshing in tanks. Journal of Shanghai Jiaotong University, 32(11):114-117 (in Chinese). [18]Wei ZJ, Faltinsen OM, Lugni C, et al., 2015. Sloshing-induced slamming in screen-equipped rectangular tanks in shallow-water conditions. Physics of Fluids, 27(3):032104. [19]Wemmenhove R, Loots E, Luppes R, et al., 2005. Modeling two-phase flow with offshore applications. International Conference on Offshore Mechanics and Arctic Engineering, p.993-1001. [20]Xue MA, Lin PZ, Zheng JH, et al., 2013. Effects of perforated baffle on reducing sloshing in rectangular tank: experimental and numerical study. China Ocean Engineering, 27(5):615-628. [21]Yu YM, Ma N, Fan SM, et al., 2017. Experimental and numerical studies on sloshing in a membrane-type LNG tank with two floating plates. Ocean Engineering, 129: 217-227. [22]Zhang JW, Wu WQ, Hu JQ, 2016. A numerical study of the effects of the longitudinal baffle on nickel ore slurry sloshing in a prismatic cargo hold. Marine Structures, 46:149-166. [23]Zhao YC, Chen HC, 2015. Numerical simulation of 3D sloshing flow in partially filled LNG tank using a coupled level-set and volume-of-fluid method. Ocean Engineering, 104:10-30. Journal of Zhejiang University-SCIENCE, 38 Zheda Road, Hangzhou
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