【摘要】 本文使用RANS方程，K－ε模型和螺旋桨升力面理论，通过力场模型将船舶尾部流动计算程序和螺旋桨性能预报计算程序耦合，用数值方法模拟了由多个螺旋桨驱动的船舶尾部流动的复杂结构和形态，初步探索了船尾流动与多个旋转螺旋桨之间的强烈相互作用。一个带四桨的船模作为数值例子。给出了计算结果并作了定性和定量的分析，与可用的试验结果作了比较，较为吻合。更多还原

【Abstract】 In this paper the complex structure and pattern of stern flow of a ship driven by multi-propellers is simulated numerically by using RANS equations with K - εturbulencemodel and propeller lifting surface theory, and coupling the computer code of ship sternflow to the computer code of propeller performance prediction through the medium of bodyforce. A ship model with four propellers is selected as the numerical example. Detailedcomputational results are presented graphically and the qualitative and quantitative analysis is made. Finally, the comparison between the calculated results and experimental datais made. The agreement between them is satisfactory.更多还原