| 直通截止阀流场与噪声数值分析 |
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| 引用本文： | 张生乐,贾晓丹,潘国雄,刘洋.直通截止阀流场与噪声数值分析[J].舰船科学技术,2016(7):113-116. |
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| 作者姓名： | 张生乐 贾晓丹 潘国雄 刘洋 |
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| 作者单位： | 武昌船舶重工集团有限公司,湖北武汉,430060 |
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| 摘 要： | 针对直通截止阀引起的船舶管路系统流场和噪声问题，采用流体力学软件 Fluent对实际使用的CB855A-DN80直通截止阀流场和噪声进行数值仿真计算。研究结果表明，流阻系数随流体流速增大呈逐渐减小的趋势，但数值变化不大。随着流速增大，水动力噪声声压级逐渐增大。
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| 关 键 词： | 直通截止阀 流场 噪声 流阻系数 |
Numerical analysis on flow field and noise of straight though cut-off valve |
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| Abstract: | in view of the characteristics of flow field and noise, created by straight though cut-off valve of ship pipeline system, the numerical simulation of the flow field and noise of common CB855A-DN80 straight though cut-off valve were accomplished with fluid dynamics software Fluent. The results showed that flow resistance coefficient decreased gradually with the increase of flow velocity, but the change in value was not big. As the flow velocity increased, the hydrodynamic noise sound pressure level increased gradually. |
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| Keywords: | straight though cut-off valve flow field noise flow resistance coefficient |
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