多载况多浮态下船舶波浪增阻数值计算分析

The Numerical Analysis of Added Wave Resistance of Ship with Multiple Loading and Floating Conditions

以某万箱集装箱船为研究对象,利用基于二维切片理论的船舶运动和波浪增阻数值计算软件(Ship Motion and Add Resistance,SMAR),进行结构吃水、船舶能效设计指数(Energy Efficiency Design Index,EEDI)吃水和压载吃水等3种典型吃水下的波浪增阻数值预报,并进行3种吃水下的耐波性模型试验。对数值结果进行验证,结果表明该软件计算结果与模型试验结果吻合度较高,计算精度满足工程实用要求。应用该软件计算多载况不同浮态下的船舶波浪增阻,探究不同载况下船舶纵倾对波浪增阻的影响,为船舶在实际营运中的航行性能分析和浮态节能提供支持。

This paper, taking a 10 000 TEU container ship as the research object, performs the numerical calculation by software Ship Motion and Add Resistance（SMAR） due to waves, to predict the added wave resistance at scantling draft, Energy Efficiency Design Index（EEDI） draft and ballast draft. Seakeeping model tests at these three typical drafts are carried out to verify the calculation results. The tests prove that a good coincidence exists between the numerical calculation results and the model test results for practical engineering application. After verification of the numerical calculation, it is used to calculate the added wave resistances at different floating states under different loading conditions, and explore the influence of ship trim to the added wave resistance. It is expected that the research will provide technical support to ship＇s navigation performance analysis and trim optimization.