Cavitating Propeller Performance in Inclined Shaft Conditions with OpenFOAM:PPTC 2015 Test Case

Stefano Gaggero; Diego Villa

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Cavitating Propeller Performance in Inclined Shaft Conditions with OpenFOAM:PPTC 2015 Test Case

机译：使用OpenFOAM：PPTC 2015测试用例在倾斜轴条件下提高螺旋桨性能

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In this paper, we present our analysis of the non-cavitating and cavitating unsteady performances of the Potsdam Propeller Test Case (PPTC) in oblique flow. For our calculations, we used the Reynolds-averaged Navier-Stokes equation (RANSE) solver from the open-source OpenFOAM libraries. We selected the homogeneous mixture approach to solve for multiphase flow with phase change, using the volume of fluid (VoF) approach to solve the multiphase flow and modeling the mass transfer between vapor and water with the Schnerr-Sauer model. Comparing the model results with the experimental measurements collected during the Second Workshop on Cavitation and Propeller Performance–SMP'15 enabled our assessment of the reliability of the open-source calculations. Comparisons with the numerical data collected during the workshop enabled further analysis of the reliability of different flow solvers from which we produced an overview of recommended guidelines (mesh arrangements and solver setups) for accurate numerical prediction even in off-design conditions. Lastly, we propose a number of calculations using the boundary element method developed at the University of Genoa for assessing the reliability of this dated but still widely adopted approach for design and optimization in the preliminary stages of very demanding test cases.

机译：在本文中，我们对波茨坦螺旋桨测试案例（PPTC）在斜流中的非空化和空化非稳态性能进行了分析。对于我们的计算，我们使用了开源OpenFOAM库中的雷诺平均Navier-Stokes方程（RANSE）求解器。我们选择均相混合法来解决具有相变的多相流，使用流体体积（VoF）方法来解决多相流，并使用Schnerr-Sauer模型对蒸汽和水之间的传质进行建模。将模型结果与在第二次气蚀和螺旋桨性能研讨会上收集的实验测量结果进行比较-SMP'15，使我们能够评估开源计算的可靠性。通过与研讨会期间收集的数值数据进行比较，可以进一步分析不同的流量求解器的可靠性，由此我们提供了推荐指南（网格布置和求解器设置）的概述，即使在非设计条件下也可以进行准确的数值预测。最后，我们提出了一些使用热那亚大学开发的边界元方法进行的计算，以评估这种过时但仍被广泛采用的设计方法和可靠性的方法，这些方法可用于非常苛刻的测试用例的初始阶段。

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《船舶与海洋工程学报（英文版）》 |2018年第1期|1-20|共20页
作者
Stefano Gaggero; Diego Villa;
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Department of Electric, Electronic, Telecommunications Engineering and Naval Architecture, University of Genoa, 16145 Genoa, Italy;

Department of Electric, Electronic, Telecommunications Engineering and Naval Architecture, University of Genoa, 16145 Genoa, Italy;

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收录信息中国科学引文数据库(CSCD);中国科技论文与引文数据库(CSTPCD);
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正文语种 eng
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Cavitating Propeller Performance in Inclined Shaft Conditions with OpenFOAM:PPTC 2015 Test Case

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