基于CFD的破舱进水数值研究  

Numerical Study on Flooding of Damaged Compartment Based on CFD

作　　者：吴家俊 李廷秋[1] 李杰[1] WU Jiajun;LI Tingqiu;LI Jie(School of Naval Architecture,Ocean and Energy Power Engineering,Wuhan University of technology,Wuhan 430063,China)

机构地区：[1]武汉理工大学船海与能源动力工程学院,武汉430063

出　　处：《中国造船》2023年第2期25-35,共11页Shipbuilding of China

摘　　要：基于商用软件STAR-CCM+研究典型船舶右舷开孔舱室模型在不同姿态下的进水过程,并对舱室密闭与通风两种情况下的破损进水进行比较。计算了舱室进水过程中水位、进水量随时间的变化和流场形态,计算结果与试验数据吻合较好,验证了计算模型的可靠性和精度。仿真结果表明,晃荡舱室的进水过程包括瞬变进水阶段与稳定后的液舱晃荡阶段。破损舱室液舱晃荡与完整舱室液舱晃荡类似。气密舱室由于被封闭的空气的影响,使得进水过程显著延迟。合理考虑舱室有、无通风的情况并准确估算进水时间,对于保障海上救援显得十分重要。In this paper,simulation in time-domain is carried out based on the commercial software STAR-CCM+to study the flooding process of a typical right side perforated compartment model with different attitudes for airtight compartment and ventilated one respectively.Time history of water level of flooding and water inflow is introduced.Calculation results are in good agreement with the experimental data,which verify the reliability and accuracy of the numerical simulation.Simulation results show that there are the transient flooding stage and the liquid tank sloshing stage in the flooding process of the compartment.The sloshing stage of the damaged compartment is similar to that of the intact compartment.Due to the influence of the trapped air,the flooding process of the airtight compartment is significantly delayed,and the water inflow and water level of flooding in an airtight compartment are lower than that in a fully ventilated compartment.There are different flooding processes between in the fixed state and in the rolling state for the airtight compartment.Therefore,reasonable consideration of ventilation is crucial for accurately estimating the time period of flooding to ensure the reliability of rescue.

关 键 词：破舱进水 进水水位 液舱晃荡 强制横摇运动 

分 类 号：U661.22[交通运输工程—船舶及航道工程]