Modelling of liquid sloshing with constrained floating baffle
Modelling of liquid sloshing with constrained floating baffle
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DOI：
10.1016/j.compstruc.2013.03.018
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发表时间：
2013-06
影响因子：
4.7
通讯作者：
C. Koh;M. Luo;M. Gao;W. Bai
中科院分区：
文献类型：
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作者：
C. Koh;M. Luo;M. Gao;W. Bai
对近年来发展起来的一致性粒子法（CPM）进行了改进，以消除压力波动，从而使流固耦合问题可以用分区耦合的方法精确地模拟。平滑压力的策略是将零密度变化条件和无速度发散条件相结合，以强制流体不可压缩。通过流体静力和自由晃动的算例验证了该算法的有效性，得到了更好的压力计算结果，同时也减少了虚假波动。利用改进的CPM方法，成功地模拟了带有约束浮板（CFB）的水体晃动。研究了循环流化床对液体晃动的抑制作用。实验研究进行了部分验证的数值算法。
The recently developed Consistent Particle Method (CPM) is improved to eliminate pressure fluctuation such that fluid–structure interaction problems can be accurately simulated with a partitioned coupling procedure. The strategy of smoothing pressure is to combine a zero-density-variation condition and a velocity-divergence-free condition to enforce fluid incompressibility. The proposed algorithm is validated by hydrostatic and free-sloshing examples, which show better pressure results with less spurious fluctuations. Using the improved CPM, water sloshing with a constrained floating baffle (CFB) is successfully simulated. The effect of CFB in sloshing mitigation is investigated. Experimental studies are conducted to partially verify the numerical algorithm.