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| 1 | Investigation of the Effects of Baffles on the Shallow Water Sloshing in A Rectangular Tank Using A 2D Turbulent ISPH Method显示文摘Liquid sloshing is a common phenomenon in the liquid tanks transportation. Liquid waves lead to fluctuating forces on the tank wall. Uncontrolled fluctuations lead to large forces and momentums. Baffles can control these fluctuations. A numerical method, which has been widely used to model this phenomenon, is Smoothed Particle Hydrodynamics(SPH). The Lagrangian nature of this method makes it suitable for simulating free surface flows. In the present study, an accurate Incompressible Smoothed Particle Hydrodynamics(ISPH) method is developed and improved using the kernel gradient correction tensors, particle shifting algorithms, k–ε turbulence model, and free surface particle detectors. Comparisons with the experimental data approve the ability of the present algorithm for simulating shallow water sloshing. The main aim of this study is to investigate the effects of the vertical baffle on the damping of liquid sloshing. Results show that baffles number has a major role in sloshing fluctuation damping. | Rahim SHAMSODDINI Bahador ABOLPUR | 2019 | China Ocean Engineering2019，33，1： | 7 |
| 2 | 壁面结构形状对流体晃荡影响的数值研究显示文摘为了合理抑制流体晃荡的问题,考虑空气可压缩性,通过系统对比不同激励频率下,三种壁面结构形状对晃荡荷载、近壁面波高、流场密度和湍动能的影响,探明壁面结构形状抑制流体晃荡的机理。结果表明:壁面凸起结构改变了流体砰击模式,进而影响了晃荡荷载分布及其作用时间;壁面凸起结构能增加湍流强度,提高能量耗散,从而降低流体对舱壁的冲量,有效抑制流体对结构的持续作用。因此,合理设计的壁面凸起结构形状可以有效降低晃荡荷载冲量,从而有效抑制流体晃荡。 | 卫志军 杜祥璞 邹国良 吴锤结 翟钢军 | 2021 | 船舶力学2021，25，9： | 3 |
| 3 | 车载油罐截面形状对汽车横向稳定性影响的研究显示文摘运加油车急转时罐内液体晃动易引起车辆侧倾甚至侧翻,为此,选用了3种常用车载油罐截面形状,采用VOF法和动坐标系对3种截面形状油罐建立了全尺寸三维仿真模型,利用流体计算软件fluent对车辆转弯时油罐车罐内液体晃动情况进行仿真模拟分析,讨论在不同充液比下车载油罐截面形状对晃动的影响。结果表明:在相同工况下,低充液比时窄而高的油罐侧向稳定性越好;高充液比时宽而矮的油罐侧向稳定性好。 | 左永刚 陈曦 | 2018 | 重庆理工大学学报(自然科学)2018，32，8： | 2 |
| 4 | 矩形水箱中模拟浅水晃荡的不同湍流模型性能研究显示文摘Liquid sloshing is a common phenomenon in the transportation of liquid-cargo tanks.Liquid waves lead to fluctuating forces on the tank walls.If these fluctuations are not predicted or controlled,for example,by using baffles,they can lead to large forces and momentums.The volume of fluid(VOF)two-phase numerical model in Open FOAM open-source software has been widely used to model the liquid sloshing.However,a big challenge for modeling the sloshing phenomenon is selecting a suitable turbulence model.Therefore,in the present study,different turbulence models were studied to determine their sloshing phenomenon prediction accuracies.The predictions of these models were validated using experimental data.The turbulence models were ranked by their mean error in predicting the free surface behaviors.The renormalization group(RNG)k-ε and the standard k–ω models were found to be the best and worst turbulence models for modeling the sloshing phenomena,respectively;moreover,the SST k-ω model and v2-f k-ε results were very close to the RNG k-εmodel result. | Mohammad Kazem Tahmasebi Rahim Shamsoddini Bahador Abolpour | 2020 | Journal of Marine Science and Application2020，19，3： | 1 |
| 5 | 受到耦合的纵荡和纵摇激励的水槽中粘性流体晃动的数值模拟(英文)显示文摘一种预估-校正有限差分方法被建立用来研究耦合的纵荡和纵摇激励对受到共振激励的水槽中粘性流体晃动的影响.通过已存在的解析解和数值解对数值模型进行了验证.可以看到流体的粘性会使自由面波产生非常明显的衰减.对于给定的雷诺数来说,如果水槽只是受到纵摇激励时,最大的晃动位移会随着激励振幅的增加而增加.但当水槽受到同时的纵荡和纵摇激励时,相应的自由面的振幅会变小且耦合的作用会改变自由面高度的时间历程曲线的形状. | 黄玉萍 罗志强 | 2016 | 曲阜师范大学学报(自然科学版)2016，42，3： | 0 |
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