| 计入尾涡衰减影响的船舶螺旋桨扰动场数值分析 |
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| 引用本文： | 覃新川,黄胜,常欣. 计入尾涡衰减影响的船舶螺旋桨扰动场数值分析[J]. 哈尔滨工程大学学报, 2007, 28(8): 847-851 |
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| 作者姓名： | 覃新川 黄胜 常欣 |
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| 作者单位： | 哈尔滨工程大学,船舶工程学院,黑龙江,哈尔滨,150001;上海交通大学,电信工程学院,上海,200240;哈尔滨工程大学,船舶工程学院,黑龙江,哈尔滨,150001 |
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| 摘 要： | 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.
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| 关 键 词： | 螺旋桨面元法 数值库塔条件 螺旋桨扰动场 涡衰减 |
| 文章编号： | 1006-7043（2007）08-0847-05 |
| 修稿时间： | 2006-03-14 |
Numerical calculation of a ship propeller's wake with attenuation |
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| QIN Xin-chuan,HUANG Sheng,CHANG Xin. Numerical calculation of a ship propeller's wake with attenuation[J]. Journal of Harbin Engineering University, 2007, 28(8): 847-851 |
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| Authors: | QIN Xin-chuan HUANG Sheng CHANG Xin |
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| Affiliation: | 1. College of Shipbuilding Engineering, Harbin Engineering University, Harbin 150001, China;2. School of Electronic, Infor marion and Electrical Engineering, Shanghai Jiaotong University, Shanghai 200240,China |
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| Abstract: | A propeller panel model was established according to basic Kutta condition principles that consider attenuation of the intensity of a wake vortex.Numerical calculations reveal that attenuation is exponential and proves that a model of the attenuation of the intensity of a propeller's wake vortex is feasible. This model can predict the disturbing field of marine propellers more precisely,paving the way for theoretical research on excitation force,noise,and interactions between the propeller and helm. |
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| Keywords: | panel method propeller numerical Kutta condition disturbing field of propeller attenuation vortex |
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