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。
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.
2016,38(7): 113-116 收稿日期：2015-12-22
DOI：10.3404/j.issn.1672-7619.2016.07.025
分类号：U664.5
作者简介：张生乐(1983-),男,工程师,主要从事船舶管路系统振动与噪声控制研究。
参考文献：
[1] 袁新明, 贺治国, 毛根海. 用RNG k-ε紊流模型对截止阀三维紊流流动的数值模拟[J]. 流体机械, 2006, 34(2):34-38. YUAN Xin-ming, HE Zhi-guo, MAO Gen-hai. Numerical simulation of a turbulence flow in the cut-off valve by RNG k-ε turbulence model[J]. Fluid Machinery, 2006, 34(2):34-38.
[2] 张玉祥, 杨柳. 截止阀的建模与仿真实现[J]. 流体机械, 2007, 35(12):29-31. ZHANG Yu-xiang, YANG Liu. Modeling and simulation implementation of stop valve[J]. Fluid Machinery, 2007, 35(12):29-31.
[3] 杨源泉. 阀门设计手册[M]. 北京. 机械工业出版社, 2000.
[4] 陆培文. 实用阀门设计手册[M]. 北京. 机械工业出版社, 2007.
[5] 袁新明, 毛根海, 张土乔. 阀门流道流场的数值模拟及阻力特性研究[J]. 水力发电学报, 1999(4):60-66.
[6] 张少凯, 蔡敬标, 方志刚. 舰船通用阀门"三漏"防治之我见[J]. 舰船科学技术, 2001, 23(5):57-61.
[7] 崔铭超, 唐科范, 刘桦. 基于CFD技术的阀门内流道优化[J]. 水动力学研究与进展, 2010, 25(4):438-445. CUI Ming-chao, TANG Ke-fan, LIU-Hua. Optimization of the valve internal flow channel based on CFD approach[J]. Chinese Journal of Hydrodynamics, 2010, 25(4):438-445.
