摘要
提出了简单适用的管路摩擦因数λ的计算方法,解决了柯尔布鲁克-怀特(Colebrook-white)公式中隐函数不易计算的问题,该方法计算精度高于其他现有简化公式;在10-8≤ε/d≤0.05、3000≤Re≤108时,该方程的计算结果与原Colebrook-White方程的平均相对偏差为0.3315%,最大偏差不超过2.0%。
A new simple and useful method is proposed for calculation of fi＇iction factors of the pipe. The problem in calculation the implicit function in Colebrook-White formula has been solved. The calculation accuracy of this method is higher than that of others. The new equation can reproduce the Colebrook-White equation with an average deviation （ARD） of 0.331 5% ,and the maximum deviation of 2.0% in the range of relative roughness is 10^-8≤ε/d≤0.05, Reynolds number is 3000≤Re≤10^8.
出处
《管道技术与设备》
CAS
2005年第4期24-25,共2页
Pipeline Technique and Equipment
关键词
摩擦因数
粗糙管
湍动流体
计算方法
friction factor
rough pipe
turbulent flow
calculation method
