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螺旋桨低频流噪声模拟方法研究

龚京风 张文平 明平剑 宣领宽

龚京风, 张文平, 明平剑, 宣领宽. 螺旋桨低频流噪声模拟方法研究[J]. 中国舰船研究, 2012, 7(5): 14-21. doi: 10.3969/j.issn.1673-3185.2012.05.003
引用本文: 龚京风, 张文平, 明平剑, 宣领宽. 螺旋桨低频流噪声模拟方法研究[J]. 中国舰船研究, 2012, 7(5): 14-21. doi: 10.3969/j.issn.1673-3185.2012.05.003
GONG Jingfeng, ZHANG Wenping, MING Pingjian, XUAN Lingkuan. Numerical Analysis of the Propeller Low Frequency Flow-Noise[J]. Chinese Journal of Ship Research, 2012, 7(5): 14-21. doi: 10.3969/j.issn.1673-3185.2012.05.003
Citation: GONG Jingfeng, ZHANG Wenping, MING Pingjian, XUAN Lingkuan. Numerical Analysis of the Propeller Low Frequency Flow-Noise[J]. Chinese Journal of Ship Research, 2012, 7(5): 14-21. doi: 10.3969/j.issn.1673-3185.2012.05.003

螺旋桨低频流噪声模拟方法研究

doi: 10.3969/j.issn.1673-3185.2012.05.003
基金项目: 中国博士后科学基金资助项目(20100471016)
详细信息
    作者简介:

    龚京风(1986-),女,博士研究生。研究方向:计算流体力学。

    通信作者:

    龚京风

  • 中图分类号: U664.33

Numerical Analysis of the Propeller Low Frequency Flow-Noise

More Information
    Corresponding author: GONG Jingfeng
  • 摘要: 针对DTMB P4119螺旋桨在进速比为0.833时的流噪声进行研究,探讨螺旋桨低频流噪声数值模拟方法。首先采用大涡模拟方法模拟螺旋桨的非稳态流场,然后求解K-FWH方程预测低频流噪声。将计算得到的推力系数和扭矩系数与实验值比较,验证流场模拟的正确性。从流场仿真结果可以看出,螺旋桨表面存在连续的涡脱落现象。声场计算的结果表明:离散噪声远大于宽带噪声;宽带噪声主要由螺旋桨表面的涡脱落引起,宽带噪声引起螺旋桨近场总声压级的周向波动;在同一半径处总声压级沿轴向逐渐减小,在同一平面内总声压级沿径向先增加后减小。
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  • 被引次数: 0
出版历程
  • 收稿日期:  2012-04-26
  • 修回日期:  2012-06-04
  • 刊出日期:  2012-10-25

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