1) friction factor
摩阻因数
1.
The friction factor formula of turbulent transition zone proposed by a Russian Scholar Altshul(Aльтщуль)has been widely used in oil storawge and transportation filed in our country.
阿尔特舒尔紊流混合摩阻因数公式在国内石油储运界应用较多,但该式只适用于管径较小、管内壁较粗糙、雷诺数较低的情况,而科尔布鲁克公式和哈兰德公式没有这种限制,后者的计算也很简单,故阿尔特舒尔公式不应继续使用。
2.
Turbulent transition zone is the main zone of trangportating oil products in pipeline, and its basic friction factor formula is Colebrook formula.
紊流混合摩擦区是成品油管输的基本流区,其摩阻因数的基准公式为科尔布鲁克公式,国标采用十分近似、容易计算的哈兰德公式。
3.
Pressure drop calculation bases on friction factor calculation.
沿程摩阻因数是制约多相管流发展的关键,摩阻因数是压降计算的重要内容之一,其计算的准确性直接决定了压降计算的准确性。
2) friction resistance factor
摩擦阻力因数
1.
Solving process of friction resistance factor by Celebrook formula and selection of initial value are discussed, and programming calculation of branch courtyard gas pipeline supplying less than two thousand householder is studied.
探讨了柯列勃洛克公式摩擦阻力因数的解法和初值的选取,研究了2000户以下庭院枝状燃气管道的编程计算。
3) dynamic friction coefficient(or factor)
动态摩阻系(因)数
4) friction factor
摩阻因子
1.
Study on friction factor and eddy viscosity of overbank flows;
漫滩水流摩阻因子与涡粘性系数的研究
5) Friction factor
摩阻系数
1.
Bottom friction factor under waves;
波浪作用下的床面摩阻系数
2.
Characteristic method is the general way to calculate the transient pressure and flow of pipeline,and accuracy of result depends on the calculation of friction factor of the pipeline.
管道瞬态水力计算可以采用特征线法,但其模拟结果的精度取决于管道沿线摩阻系数的选取。
3.
The results show that the friction factor decreases with a reducing of relative roughness as a whole.
采用Colebrook White公式和数学计算方法 ,深入研究了粗糙度对输气管道摩阻系数的影响。
6) Friction coefficient
摩阻系数
1.
Effect of measuring error of power - law fluid on pipeline friction coefficient;
幂律流体本构常数测量误差及其对管线摩阻系数的影响
2.
Prediction on wellhead outflow performance by dynamic friction coefficient of gas wells
利用气井动态摩阻系数预测井口流出动态
3.
In the present paper, flow characteristics of laminar near-wall boundary layer in dusty atmosphere and the effects of airborne dust on friction coefficient are investigated.
采用双向耦合的双流体模型 ,研究了大气悬浮沙尘的存在对大气边界层中层流底层流动特性及摩阻系数的影响 ,计算并讨论了不同沙尘含量下含尘大气相对于无尘大气摩阻系数的变化。
补充资料：环空摩阻
分子式：
CAS号：
性质：又称环空摩耗或环空摩阻。在环形空间部分发生的压力损失。
CAS号：
性质：又称环空摩耗或环空摩阻。在环形空间部分发生的压力损失。
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