人民黄河Issue(10)：117-119,3.DOI:10.3969/j.issn.1000-1379.2014.10.035
瞬变流中 MIAB 摩阻模型的数值模拟研究
Study on Numerical Simulation of MIAB Friction Model to Transient Flow
摘要
Abstract
Hydraulic transient phenomenon is the main problem need to be considered in safe operation of long-distance water transportation system. Because of the traditional "quasi-steady" model can not accurately predict the peak of pressure wave and the decay process of water hammer wave, so the introduction of a more accurate simulation of unsteady friction model transient flows become an important content in project safe operation re-search. In this paper,based on model test,numerical simulation was carried out by using a constant friction model and MIAB friction model,quan-titatively analyzed the agreement between the calculated results of two kinds of model and the measured pressure value,then,the priority order of models was discussed by comparative analysis. It put forward a method to further improve the MIAB friction model simulation accuracy by improving the empirical formula of Brunone friction coefficient k ,field correction of velocity and friction coefficient f and researching the transient flow charac-teristics of complex long distance water supply system.关键词
长距离输水系统/MIAB 摩阻模型/瞬变流/摩阻系数Key words
long-distance water transportation/MIAB friction model/transient flows/friction coefficient分类
建筑与水利引用本文复制引用
黄伟,董亮,闫宇翔,张泽宇..瞬变流中 MIAB 摩阻模型的数值模拟研究[J].人民黄河,2014,(10):117-119,3.基金项目
太原理工大学研究生科技创新基金资助项目（2013B088）；山西省国际合作项目（2013081034）。 （）
