流体阻力摩擦系数关联式演变的探讨  

Research on Development of the Connection Equation on Friction Factor of Fluid Resistance

作　　者：曹北平[1] 

机构地区：[1]新疆大学化学化工学院,新疆乌鲁木齐830046

出　　处：《广州化工》2009年第4期28-31,共4页GuangZhou Chemical Industry

摘　　要：在通用的流体阻力摩擦系数计算公式的基础上进行推演变形,得到两个不同形式的计算表达式。并运用Excel的图表向导功能对这两个表达式进行误差校验。分析数据表明,这两个新的公式被用于计算莫迪图中十条不同相对粗糙度曲线的摩擦系数时,所产生误差的平均水平均能满足工程计算的精度要求。文章立意中的对通用公式进行推演变形的必要性在理论上是成立的。Two new expressions was got, which were about friction factor of fluid resistance by developing general connection equation. And the formulas were checked by library and chart wizard function of Excel. Data showed that they can be used to calculate friction factors of fluid resistance of ten curves with different relative roughness. Calculation errors were in the range of engineering precision. The need to deduce general formula on subject of this article was established in theory.

关 键 词：修正指数 误差均方差 摩擦系数 相对误差 

分 类 号：TP317.3[自动化与计算机技术—计算机软件与理论] TH117.1[自动化与计算机技术—计算机科学与技术]