【摘要】 利用有限体积方法和RNGk ε湍流模型直接求解RANS方程计算近水面航行二维水翼 (NACA 0 0 12 )的水动力特性 ,自由水面采用流体体积方法 (VOF)描述 ,与试验结果的比较表明 ,本文的计算模型是合理的 ,结论是正确的 ,通过计算给出了不同浸深、攻角和傅氏数的升力系数、阻力系数等曲线。更多还原

【Abstract】 The RANS equation is directly solved by the finite volume method and RNG κ-ε model to compute the flow characteristics of 2-dimensional hydrofoil(NACA0012)moving near to free-water surface.The MAC method is used simulate free water surface.The results calculated in the present method are compared to experimental data.The comparison shows that the computation model is rational and the conclusion is correct. Hydrodynamic characteristics under different submergence,attack angle and Froude number are computed.更多还原