Numerical prediction of cavitation erosion on a ship propeller in model- and full-scale
Numerical prediction of cavitation erosion on a ship propeller in model- and full-scale
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DOI：
10.1016/j.wear.2018.04.012
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发表时间：
2018-08-15
期刊：
影响因子：
5
通讯作者：
el Moctar, Ould
中科院分区：
文献类型：
--
作者：
Peters, Andreas;Lantermann, Udo;el Moctar, Ould
采用流体体积法（VoF）模拟了螺旋桨空泡流场，并采用基于RANS的隐式流场求解器对螺旋桨空泡流场进行了数值模拟。采用滑动界面法对螺旋桨的旋转运动进行了数值模拟。基于微射流假设的数值模型，使用来自流动解的信息预测了侵蚀。在非空泡和空泡条件下的螺旋桨的模拟进行了比较，实验测量，从而证明了所提出的数值方法的能力，定性预测空泡侵蚀的船舶螺旋桨。
The cavitating flow around a ship propeller was simulated with an implicit RANS based flow solver using the Volume of Fluid (VoF) method to model the interface between the two phases. The sliding interface method was applied to simulate the rotation of the propeller, comprising a rotor and a stator region. Erosion was predicted with a numerical model based on the microjet hypothesis, using the information from the flow solution. Simulations of a propeller under non-cavitating and cavitating conditions were compared to experimental measurements, thereby demonstrating the ability of the presented numerical method to qualitatively predict cavitation erosion for a ship propeller.