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FPSO船与低充水率下LNG液舱晃荡耦合运动的数值模拟

庄园 万德成

庄园, 万德成. FPSO船与低充水率下LNG液舱晃荡耦合运动的数值模拟[J]. 应用数学和力学, 2016, 37(12): 1378-1393. doi: 10.21656/1000-0887.370516
引用本文: 庄园, 万德成. FPSO船与低充水率下LNG液舱晃荡耦合运动的数值模拟[J]. 应用数学和力学, 2016, 37(12): 1378-1393. doi: 10.21656/1000-0887.370516
ZHUANG Yuan, WAN De-cheng. Numerical Study on Coupling Effects of FPSO Ship Motion and LNG Tank Sloshing in Low-Filling Conditions[J]. Applied Mathematics and Mechanics, 2016, 37(12): 1378-1393. doi: 10.21656/1000-0887.370516
Citation: ZHUANG Yuan, WAN De-cheng. Numerical Study on Coupling Effects of FPSO Ship Motion and LNG Tank Sloshing in Low-Filling Conditions[J]. Applied Mathematics and Mechanics, 2016, 37(12): 1378-1393. doi: 10.21656/1000-0887.370516

FPSO船与低充水率下LNG液舱晃荡耦合运动的数值模拟

doi: 10.21656/1000-0887.370516
基金项目: 国家自然科学基金(51379125; 51490675; 11432009; 51579145; 11272120);长江学者奖励计划(T2014099)
详细信息
    作者简介:

    万德成,E-mail: dcwan@sjtu.edu.cn

  • 中图分类号: O35

Numerical Study on Coupling Effects of FPSO Ship Motion and LNG Tank Sloshing in Low-Filling Conditions

Funds: National Natural Science Foundation of China(51379125; 51490675; 11432009; 51579145; 11272120) and the Chang Jiang Scholars Program of China(T2014099)
  • 摘要: 应用数值模拟方法对FPSO船舶运动与LNG液舱晃荡耦合问题进行了研究.这种全耦合问题的研究基于开源平台OpenFOAM开发的船舶与海洋工程水动力CFD求解器——naoe-FOAM-SJTU进行计算.液舱内部流场与外部流场同时求解.采用带有两个LNG液舱的FPSO船作为对象进行数值模拟,船舶放开3个自由度运动,并在90°浪向的规则波中进行模拟.液舱充水率为20%~20%,低于船外自由水面高度.这种低充水率的液舱会大大减少船舶的横摇运动,并且舱内的流体情况较为复杂.考虑了4种不同的入射波频率下船舶的运动,与实验结果进行了对比.数值模拟结果与实验结果对比吻合良好,验证了数值求解方法的可靠性.还对大波高情况下带有低充水率LNG液舱的船舶运动进行了数值模拟分析.在船舶运动与液舱晃荡全耦合情况下,观察到了液舱内流体的剧烈晃荡和舱壁的脉冲压力.
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出版历程
  • 收稿日期:  2016-11-17
  • 修回日期:  2016-12-09
  • 刊出日期:  2016-12-15

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