流体机械2017，Vol.45Issue(2)：66-70,5.DOI:10.3969/j.issn.1005-0329.2017.02.015
换热管内污水湍流流动沿程阻力特性研究
Mathematical Model and Operation Analysis of Semi-submerged Rotary Orifice Sewage Source Heat Pump Intake Machine
摘要
Abstract
In order to analyze the inner-tube sewage flow resistance is effected by the fouling,the mathematical model of the frictional resistance coefficient is established.In this paper,the initial velocity in the no-fouling condition and the running-time is seen as the influence factors to the flow resistance coefficient.According to the model,the formula of the sewage flow resistance coefficient in the heat exchange tube is obtained through the theoretical derivation and the experimental.The results show that the hypothesis is correct and the sewage flow resistance coefficient is expressed through the thickness of viscous sublayer and the thickness of fouling.关键词
阻力特性/污垢/热泵Key words
flow resistance characteristics/fouling/heat pump分类
机械制造引用本文复制引用
刘志斌,吴荣华..换热管内污水湍流流动沿程阻力特性研究[J].流体机械,2017,45(2):66-70,5.基金项目
中国博士后科学基金面上资助项目(2016M602096) （2016M602096）
