Calculation of the flow characteristics of a pipeline with an intermittent air source while considering the dynamic change of flow area of a ball valve

机译：考虑球阀流量面积动态变化的间歇气源管道的流量特性计算

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The method of characteristics used to solve a one-dimensional unsteady flow field of a simplified pipeline model were used to study the gas flow characteristics of a pipeline and the change in pressure in a container with an intermittent air source of a gas bearing test-bed, in particular, the pipeline flow velocity and pressure changes were analyzed. The flow area of the ball valve increased gradually as the valve was in the process of opening. The dynamic process of opening the valve and the reduction of pressure in the container with the air source during the operation were taken into account in the calculations used in the model. The program employed the FORTRAN computer language. The results show that the model used here is able of calculating the change of pressure and gas mass of an intermittent air source and the flow characteristics of pipeline. The method of characteristic can satisfy the requirement for accuracy and computational speed. This study provides a possible approach for the further study and optimization of this process.

机译：用一种求解简化管道模型的一维非定常流场的特征方法，研究了管道的气体流动特性以及带有气垫试验台的间歇气源的容器中的压力变化。特别是对管道的流速和压力变化进行了分析。球阀的流通面积随着阀门处于打开状态而逐渐增加。在模型中使用的计算中考虑了在操作过程中打开阀门的动态过程以及使用气源降低容器中的压力。该程序使用了FORTRAN计算机语言。结果表明，该模型能够计算出间歇性气源的压力和气体质量的变化以及管道的流动特性。特征方法可以满足对精度和计算速度的要求。这项研究为进一步研究和优化该过程提供了一种可能的方法。

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来源
《Proceedings of 2015 International Conference on Fluid Power and Mechatronics》|2015年|1067-1071|共5页
会议地点 Harbin(CN)
作者
Guo Liang-bin; Zhao Yun-xiang;
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作者单位

Machinery Autom. Coll., Wuhan Univ. of Sci. Technol., Wuhan, China;

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会议组织
原文格式 PDF
正文语种 eng
中图分类
关键词
containers; pipelines; valves; FORTRAN computer language; ball valve; container; dynamic change; flow area; gas bearing test-bed; gas flow characteristics; gas mass; intermittent air source; one-dimensional unsteady flow field; pipeline flow velocity; pressure changes; simplified pipeline model; Atmospheric modeling; Containers; Fluctuations; Mathematical model; Orifices; Pipelines; Valves; dynamic change of flow area; intermittent air source; method of characteristics; unsteady flow in a pipeline;

机译：容器;管道;阀门; FORTRAN计算机语言;球阀;容器;动态变化;流动面积;气体轴承试验台;气体流动特性;气体质量;间歇性气源;一维不稳定流场;管道流速;压力变化;简化的管道模型;大气模型;容器;波动;数学模型;孔口;管道;阀门;流动面积的动态变化;间歇性空气源;特性方法;管道中的不稳定流动;;

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Calculation of the flow characteristics of a pipeline with an intermittent air source while considering the dynamic change of flow area of a ball valve

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