应用FINE/Marine的航行Wigley船的辐射数值模型

FINE/Marine-based numerical simulation of forward-speed radiation problems of a Wigley hull

为了准确预报船舶的耐波性能,本文基于计算流体力学软件FINE/Marine建立了有航速船舶的水动力分析模型,并应用该数值模型对航行Wigley船的辐射问题展开了研究和分析。对建立的数值模型进行了收敛性验证;然后分别对Wigley船的垂荡和纵摇辐射问题进行数值模拟,将计算所得的附加质量和辐射阻尼系数与时域高阶边界元法的计算结果和实验数据进行了对比,验证了该数值模型在辐射问题上的水动力计算精度。通过以上研究可知:基于FINE/Marine的船舶水动力分析模型可以对船舶的非定常辐射问题进行准确的预报。

The forward radiation problems of a Wigley hull were simulated based on the computational fluid dynamics （CFD ） commercial software, FINE/Marine. First,the convergence was verified for the new model; Then numerical simulations were conducted respectively for the forced heave and pitch of the hull. Numerical results including the added mass and damping coefficients agreed with the experimental data and other numerical solutions. It was confirmed that the FINE/Marine-based numerical model has the capability of accurately predicting the irregular radiation problems.