水面舰船风载荷系数研究

Research on wind load factor of a surface ship

以某水面舰船模型为研究对象,基于STAR-CCM+流体计算仿真软件对该模型的水线以上船体部分的风载荷进行数值计算,同时也采用了Isherwood法和Blendermann法对其风载荷进行计算,最后将计算结果无因次化,并与风洞试验结果进行比对。研究发现:3种计算方法所得到的计算结果与试验结果基本趋于一致,通过与试验结果进行误差对比分析,发现数值计算的误差最小,Isherwood法其次,Blendermann法的误差最大。此3种计算风载荷系数方法可为设计应用提供一定的参考与借鉴。

Taking a surface ship as the research object, the wind load on the hull of the modle above waterline is calculated based on the fluid simulation software, calculating wind load is also by through the way of Isherwood and Blendermann at the same time, the dimensionless computing results are compared with result of the wind tunnel test at last. Research finding：computing results by three computational method are consistent with the test result, what＇s more, it can find that error of numerical results is minimum, the method of Isherwood is secondly, error ofBlendermann is maximum. The three methods of calculating the wind load coefficient can provide some reference for the design and application.