根据船体阻力成因和预报方法的讨论分析,提出了基于CFD理论计算进行实船阻力预报的一种新方法,基于黏性流理论对叠模求解以获得船体黏性阻力,基于理想流体理论直接求解Euler方程获得船体兴波阻力。通过对系列60船型与KCS船型在各航速下船体阻力计算和试验结果的比较表明,该方法计算速度快,经济性好,预报精度满足工程需要,有较强的工程实用性。
A method for ship resistance prediction based on CFD computation is outlined, with ship form factor obtained by solving the viscosity resistance of double-model in turbulence flow theory and the wave making resistance in ideal flow theory. Comparing with the experimental results of series-60 and KCS advancing with different speeds, the new method of ship resistance prediction is economical, practical and meets the engineering needs.