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首页> 外文会议>ASME international conference on ocean, offshore and arctic engineering >NUMERICAL AND EXPERIMENTAL RESEARCH ON A PODDED PROPULSOR
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NUMERICAL AND EXPERIMENTAL RESEARCH ON A PODDED PROPULSOR

机译：增补螺旋桨的数值和实验研究

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This paper presents methodologies and some results of a numerical and experimental program to evaluate the effects of static azimuthing conditions on the propulsive characteristics of a puller podded propulsor in open water. In the experimental effort, the model propulsor was instrumented to measure thrust, torque and rotational speed of the propeller, and three orthogonal forces and moments, and azimuthing angle of the pod. The experimental results included the bare propeller (ahead only) and the combined propeller and pod over a range of advance coefficients at various static azimuthing angles in the range of-180° to 180°. A complementary numerical study is being carried out to predict the hydrodynamic forces of podded propulsor in static azimuthing conditions. A Reynolds-Averaged Navier Stokes solver is used to predict the propulsive performance of the bare propeller as well as the podded propulsor system. The thrust and torque for the bare propeller were compared to the corresponding measurements. The propeller thrust and torque as well as the loads on the pod in straight-ahead condition and at static azimuthing angles were then compared with the measurements. Preliminary analysis demonstrates that the RANS solver could predict the performance coefficients of the bare propeller as well as the podded propulsor in straight-ahead and static azimuthing angles in puller configurations.
机译：本文介绍了数值和实验程序的方法和一些结果，以评估静态方位角条件对裸露的开普敦式推进器推进特性的影响。在实验工作中，对模型推进器进行了测量，以测量螺旋桨的推力，扭矩和旋转速度，以及三个正交的力和力矩以及吊舱的方位角。实验结果包括裸螺旋桨（仅向前）以及组合的螺旋桨和吊舱在-180°至180°范围内的各种静态方位角下的一系列超前系数。正在进行补充数值研究，以预测在静态方位角条件下荚式推进器的流体动力。使用雷诺平均Navier Stokes求解器来预测裸螺旋桨和吊舱推进器系统的推进性能。将裸露螺旋桨的推力和扭矩与相应的测量值进行比较。然后将螺旋桨的推力和扭矩以及直行情况下和静态方位角下的吊舱上的负载与测量值进行比较。初步分析表明，RANS求解器可以预测直线推进器中裸螺旋桨以及带荚推进器的性能系数（在直线方向和静态方位角下）。

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