Nonlinear modeling of liquid sloshing in a moving rectangular tank
Nonlinear modeling of liquid sloshing in a moving rectangular tank
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DOI：
10.1016/s0029-8018(01)00085-3
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发表时间：
2002-09
影响因子：
5
通讯作者：
M.Serdar Celebi;H. Akyıldız
中科院分区：
文献类型：
--
作者：
M.Serdar Celebi;H. Akyıldız
本文研究了矩形贮箱内液体的非线性晃动问题。假设流体是均匀的、各向同性的、粘性的、牛顿的，并且仅表现出有限的可压缩性。坦克被迫沿着一条垂直曲线与滚动运动的谐波运动，以模拟实际坦克激励。采用流体体积法跟踪自由液面。该模型通过有限差分近似求解原始变量的完整Navier-Stokes方程。在每一个时间步，施主-受主方法被用来传输流体函数的体积，从而自由表面的位置。为了评估所使用的方法的准确性，计算通过收敛性测试进行了验证，并与理论解和实验结果进行了比较。
A nonlinear liquid sloshing inside a partially filled rectangular tank has been investigated. The fluid is assumed to be homogeneous, isotropic, viscous, Newtonian and exhibit only limited compressibility. The tank is forced to move harmonically along a vertical curve with rolling motion to simulate the actual tank excitation. The volume of fluid technique is used to track the free surface. The model solves the complete Navier–Stokes equations in primitive variables by use of the finite difference approximations. At each time step, a donor–acceptor method is used to transport the volume of fluid function and hence the locations of the free surface. In order to assess the accuracy of the method used, computations are verified through convergence tests and compared with the theoretical solutions and experimental results.