吊舱式推进器偏转工况下水动力性能

摘要/Abstract

摘要：

针对吊舱推进器的关键技术，探讨了吊舱推进器在偏转状态下的水动力性能.利用空泡水洞以及吊舱动力仪进行了吊舱推进器在偏转工况下的一系列试验研究，比较分析了不同偏转角下吊舱推进器水动力性能.同时，结合RANS（Reynoldsaveraged Navier-Stokes）方程和RNG（Random number generation） k-ε湍流模型，运用滑移网格方法对吊舱推进器在偏转状态下水动力性能进行了数值模拟,并将试验结果和数值结果进行了比较分析.结果表明：偏转角度越大，试验值与计算值偏差越大，尤其是吊舱推进器沿来流方向推力的偏差较大，但总体变化趋势较为一致.

关键词: 吊舱推进器, 水动力性能, 空泡水洞, 偏转角度, 模型试验, 数值模拟

Abstract:

The hydrodynamics performance of podded propulsion at declination angles was discussed. A series of experimental investigations for hydrodynamics performance of podded propulsion at declination angles were conducted by pod dynamical instrument and cavitation tunnel. The hydrodynamics performance of podded propulsion at different declination angles were compared and analyzed. Meanwhile, the hydrodynamics performance of podded propulsion at declination angles were predicted using the RANS formula with RNG k-ε turbulence model based on the sliding mesh method. The experimental and the numerical results were compared and analyzed, which indicate that, along with the augmentation of the declination angle, the warp between the experimental and the numerical results is larger, especially for the thrust of podded propulsion in the flow direction. However, the variational trend is consistent.

Key words: podded propulsion, hydrodynamics performance, cavitation tunnel, declination angles, model test, numerical simulation

中图分类号:

U 661.71

熊鹰1，盛立2，杨勇1. 吊舱式推进器偏转工况下水动力性能[J]. 上海交通大学学报（自然版）, 2013, 47(06): 956-961.

XIONG Ying1，SHENG Li2，YANG Yong1. Hydrodynamics Performance of Podded Propulsion at Declination Angles[J]. Journal of Shanghai Jiaotong University, 2013, 47(06): 956-961.

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