1) pipeline drag coefficient
管道阻力系数
1.
In order to solve pipeline drag coefficient and apply it to hydraulic calculation in projects,grey-linear regression combined model is used to solve pipeline drag coefficient,the model of calculating pipeline drag coefficient is got,and combining with engineering exampl,the model is verified.
为了求解管道阻力系数,将其应用到工程中的水力计算中,运用灰色线性回归组合模型进行求解,得出了计算管道阻力系数的数学模型,并结合工程实例进行验证。
2) strain pieces
管道磨阻系数
1.
In view of the conventional measurement in tie bar internal force,wire vibrating frequency measuring method and strain pieces measuring method for pipe fraction factor are compared.
比较分析了粘贴应变片法和弦振频率法在系杆内力监测中的应用情况,并根据实测数据对系杆管道磨阻系数进行调整,减少其和实际测试结果的偏差。
3) tube friction resistance coefficient
管道摩阻系数
1.
Based on the site-test datum,the least square technique is used to identify the tube friction resistance coefficient μ and the tube deviation coefficients k.
根据实际测试结果采用最小二乘原理识别管道摩阻系数μ和偏差系数k,分析了测试方法的合理性和试验结果的可靠性。
4) pipe resistance coefficient
管段阻力系数
6) resistance of ducting
管道阻力
1.
For the calculation of resistance of ducting when either flowrate or pipe diameter is unknown or both of them are unknown, the test-difference and indiredt-calculation methods are used in present-day teaching materials and relevant clocuments.
关于流速未知(或管径未知)以及流速和管径均未知的管道阻力计算,现行(化工原理)(化工基础)教材和有关文献介绍的是试差法和间接计算法求解,本文介绍了一种较以上两种计算方法更简便的一步直接计算法。
补充资料:风阻系数
风阻系数:空气阻力是汽车行驶时所遇到最大的也是最重要的外力。空气阻力系数,又称风阻系数,是计算汽车空气阻力的一个重要系数。它是通过风洞实验和下滑实验所确定的一个数学参数, 用它可以计算出汽车在行驶时的空气阻力。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条