非闪蒸型气液二相流压降计算的计算机程序化  

Computer programming for pressure drop calculation of non-flash gas-liquid two-phase flows

作　　者：李凯 董宝春 尹俊杰 张信 高峰 张珍年 

机构地区：[1]航天长征化学工程股份有限公司兰州分公司,甘肃兰州730050

出　　处：《化学工程》2015年第4期56-59,68,共5页Chemical Engineering(China)

摘　　要：确定气液二相流的流动形式对于两相流的压力降计算非常重要,而在流型判断中,使用Baker图和GriffithWallis图进行手算尚可,却不利于计算机编程。基于此,应用Origin软件对Baker图和Griffith-Wallis图进行数据回归,得到划分区域线条的函数,再使用C++语言进行编程,实现整个计算过程的计算机程序化,可快捷、准确地判断垂直管道和水平管道的二相流流型,并使用均相法和杜克勒法计算出二相流管道压力降。计算机编程能大幅度提高计算效率,在处理杜克勒法压力降计算中的迭代运算时尤为实用。经过规范中例题的验证和工程实例运行结果,证明该方法是可行和准确的。Assessing flow pattern of gas-liquid two-phase flow is crucial to calculating pressure drop for it. In terms of assessing flow pattern for gas-liquid two-phase flow, the Baker and Griffith-Wallis Graphs are widely used by engineers for manual calculation in order to get some rough accessing results used in some place, but they are restrained to link computer programs as a more efficient and accurate calculations. In order to obtain the functions of dividing area lines, the data regressions using the Origin for the Baker and Griffith-Wallis Graphs were applied. Then it is programmed via C ＋＋ Language to make the whole calculation processes as an integral computer programming session. From the experimental data of simulation results, it concludes that with the help of computer calculation programs, it can rapidly and accurately assess the forms for two-phase flow of both in vertical and horizontal piping systems, and calculate the pressure drop in two-phase flow piping systems using homogeneous process and Dukler-Method. Computer programming can greatly increase the calculation efficiency especially when trying to figure out iteration computing problems in Dukler-Method pressure drop calculations, which is practically used. From the cases＇ study of some relevant standards and codes, it is considered as a feasible and accurate method in this field.

关 键 词：气液双相流 流型 数据回归 计算机编程 压力降 

分 类 号：TQ022.4[化学工程]