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首页> 外文会议>International Conference on Hydrodynamics; 20041124-26; Perth(AU) >Hydrodynamic performance of marine propeller in cavitating flow
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Hydrodynamic performance of marine propeller in cavitating flow

机译：船用螺旋桨空化流动的水动力性能

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摘要

This paper is presented a boundary element method (BEM) for the calculation of hydrodynamic performance of marine propeller in cavitating flow condition. The effectiveness of the method is demonstrated with results for a partially cavitating a marine propeller. The method employs source and dipole singularities, which give an integral equation on body and cavity surfaces, to obtain the cavity shape and hydrodynamic characteristics of the cavitating propeller. A nonlinear formula of the dynamic boundary condition was applied for determining the potential on the cavity surface. The effect of the cross-flow was considered when calculating the velocity on the cavity surface. The method is able to find a good solution for the hydrodynamic characteristics of the marine propeller in cavitating condition. We found propeller model SRI123 to compare with the present computational results. The calculated hydrodynamic characteristics in a cavitating condition are relatively in good agreement with experimental data.
机译：本文提出一种边界元法（BEM），用于计算空化条件下船用螺旋桨的水动力性能。结果证明了该方法的有效性，其结果是部分空化了船用螺旋桨。该方法利用源极和偶极奇异点，在体和腔表面上给出一个积分方程，以获得空化螺旋桨的腔形状和流体动力特性。应用动态边界条件的非线性公式确定空腔表面的电势。在计算型腔表面的速度时，应考虑横流的影响。该方法能够为空化条件下的船用螺旋桨的水动力特性找到良好的解决方案。我们发现螺旋桨模型SRI123与目前的计算结果进行了比较。在空化条件下计算的水动力特性与实验数据相对较好。

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