A simple method for high-precision evaluation of valve flow coefficient by computational fluid dynamics simulation
A simple method for high-precision evaluation of valve flow coefficient by computational fluid dynamics simulation
复制标题
计算流体动力学模拟高精度评估阀门流量系数的简便方法
DOI：
10.1177/1687814017713702
复制
发表时间：
2017-07
影响因子：
2.1
通讯作者：
Zhang Yi-Fang
中科院分区：
文献类型：
--
作者：
Zhou Xiao-Ming;Wang Zhi-Kun;Zhang Yi-Fang
Flow coefficient is an important performance index associated with the energy efficiency of a valve, and an effective method to evaluate valve flow coefficient is necessary for valve industry. However, theoretical estimation often results in poor accuracy, while experimental measurements involve significant costs in time and equipment. In this article, a computational fluid dynamics method is proposed to achieve simple and accurate evaluation of valve flow coefficient. For each valve, a computational fluid dynamics model is established containing a valve section, an upstream section, and a downstream section. A grid-adaptation strategy is then applied to improve the accuracy of simulation. To calculate flow coefficient, the most important issue is to determine the net pressure loss induced by valve (ΔPv). Herein, the overall pressure drop (ΔPo) is obtained first, and the pipe-induced pressure drop (ΔPp) is estimated by linear fitting. Then, ΔPv is calculated as the difference between ΔPo and ΔPp. To ensure accurate estimation of the pressure losses, a length of 26 times of pipe diameter is preferred for the upstream section. The experiments demonstrated that the presented method can accurately predict flow coefficient for various types of valves and thus has great potential to be widely used in the valve industry.
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影响因子：
5.5
作者：
Matthew Stevenson;X. Chen
通讯作者：
Matthew Stevenson;X. Chen
DOI：
--
发表时间：
2007
期刊：
--
影响因子：
--
作者：
Xueguan Song
通讯作者：
Xueguan Song
影响因子：
2
作者：
Chendong Huang;R. H. Kim
通讯作者：
Chendong Huang;R. H. Kim
影响因子：
10.4
作者：
Ye, Yi;Yin, Chen-Bo;Yuan, Feng-feng
通讯作者：
Yuan, Feng-feng
影响因子：
0.8
作者：
N. Whitehead;A. Slaouti;H. Taylor
通讯作者：
N. Whitehead;A. Slaouti;H. Taylor