【摘要】 叶素动量理论体积力模型作为能够替代真实螺旋桨的一种体积力形式，在模拟螺旋桨以及船桨相互作用问题中具有较大的应用潜力。为了处理基于理想流体假设的传统叶素动量理论在与粘性求解器耦合过程中不能在较大工况范围内准确代表真实螺旋桨模型的问题，本文提出一种基于真实螺旋桨诱导因子分布的改进方法，并进行KP505螺旋桨体积力模型在J=0.4～0.8五种进速条件下的敞水试验模拟。本文将敞水性能、桨载荷分布与诱导速度场的体积力模拟结果与真实螺旋桨模型进行了对比，结果表明改进后的体积力模型预报敞水性能误差在各进速下最大值为1.05%，且体积力模型诱导速度场可以反映真实螺旋桨尾流的动量输运。更多还原

【Abstract】 As a kind of body-force model capable of replacing real propellers, the Blade Element Momentum Theory(BEMT) has a great application potential in simulating propeller performance and hull-propeller interaction. In order to deal with the problem that the traditional BEMT based on the ideal fluid hypothesis cannot accurately represent the real propeller model in a wide range of working conditions when coupling with the viscosity solver, an improved induct factor calculation method based on the real propeller was proposed in this paper. Open-water simulation of KP505 propeller body-force model at J=0.4-0.8 was carried out, and the simulation results of the body-force model, such as open-water performance, propeller load distribution and induced velocity field, were compared with those of the real propeller model. The results show that the maximum error of open water performance is 1.05% at each advance ratio, and the induced velocity field of the improved body-force model can reflect the wake momentum transport of the real propeller.更多还原