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计入尾涡衰减影响的船舶螺旋桨扰动场数值分析 被引量:2
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作者 覃新川 黄胜 常欣 《哈尔滨工程大学学报》 EI CAS CSCD 北大核心 2007年第8期847-851,共5页
依据库塔条件反映物理真实的基本精神,考虑尾涡强度沿流线衰减,修正了Morino数值库塔条件,建立了考虑泄出自由涡衰减影响的螺旋桨面元计算模型.主要通过数值计算结果说明涡的衰减方式基本满足指数衰减规律.将这种数值库塔条件应用到螺... 依据库塔条件反映物理真实的基本精神,考虑尾涡强度沿流线衰减,修正了Morino数值库塔条件,建立了考虑泄出自由涡衰减影响的螺旋桨面元计算模型.主要通过数值计算结果说明涡的衰减方式基本满足指数衰减规律.将这种数值库塔条件应用到螺旋桨扰动场的数值分析中,讨论了相关参数的确定原则和具体方法,该计算模型可以较准确地预测船舶螺旋桨扰动场,为理论研究船舶螺旋桨的激振力和噪音、桨舵干扰提供了一个新途径.数值分析结果证明,考虑涡强衰减的螺旋桨面元计算模型是可行的. 展开更多
关键词 螺旋桨面元法 数值库塔条件 螺旋桨扰动场 涡衰减
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Using the surface panel method to predict the steady performance of ducted propellers 被引量:5
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作者 蔡昊鹏 苏玉民 +1 位作者 李鑫 沈海龙 《Journal of Marine Science and Application》 2009年第4期275-280,共6页
A new numerical method was developed for predicting the steady hydrodynamic performance of ducted propellers. A potential based surface panel method was applied both to the duct and the propeller, and the interaction ... A new numerical method was developed for predicting the steady hydrodynamic performance of ducted propellers. A potential based surface panel method was applied both to the duct and the propeller, and the interaction between them was solved by an induced velocity potential iterative method. Compared with the induced velocity iterative method, the method presented can save programming and calculating time. Numerical results for a JD simplified ducted propeller series showed that the method presented is effective for predicting the steady hydrodynamic performance of ducted propellers. 展开更多
关键词 surface panel method ducted propeller velocity potential iteration steady hydrodynamic performance
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