A numerical study of the effects of the vertical baffle on liquid sloshing in two-dimensional rectangular tank
A numerical study of the effects of the vertical baffle on liquid sloshing in two-dimensional rectangular tank
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DOI：
10.1016/j.jsv.2011.08.002
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发表时间：
2012-01
影响因子：
4.7
通讯作者：
H. Akyıldız
中科院分区：
文献类型：
--
作者：
H. Akyıldız
研究了带有竖直挡板的部分充液运动矩形贮箱内液体晃动问题。采用基于流体体积（VOF）技术的数值算法研究液体晃动的非线性特性。数值模型采用移动坐标系下的有限差分近似求解原始变量的完整Navier-Stokes方程。在0≤hB/h≤1.2的范围内改变了折流板高度与初始液深的比值。研究了达到罐顶的临界挡板高度和液体不再越过挡板的挡板高度。随着折流板高度的增加，由折流板顶部的流动分离产生的旋涡逐渐减弱。为了评估所使用的方法的准确性，与挡板高度的一些结果与实验结果进行了比较。比较显示出良好的协议晃动载荷的情况下进行调查。给出了自由液面高度和压力随时间的变化。
The liquid sloshing in a moving partially filled rectangular tank with a vertical baffle is investigated. A numerical algorithm based on the volume of fluid (VOF) technique is used to study the nonlinear behavior of liquid sloshing. The numerical model solves the complete Navier–Stokes equations in primitive variables by using of finite difference approximations with the moving coordinate system. The ratio of baffle height to the initial liquid depth has been changed in the range of 0≤hB/h≤1.2. The critical baffle height to reach the roof of the tank and the baffle height beyond the liquid does not get over the baffle anymore have been investigated. The vortex originated by the flow separation from the baffle tip became weaker with increasing the baffle height. In order to assess the accuracy of the method used, some results with baffle height are compared with the experimental results. Comparisons show good agreement for slosh loads in the cases investigated. The free surface elevation and the time variations of pressures have been also presented.