SIMPLE METHOD OF PREDICTING FRICTION FACTORS OF TURBULENT FLOW IN NONCIRCULAR CHANNELS
SIMPLE METHOD OF PREDICTING FRICTION FACTORS OF TURBULENT FLOW IN NONCIRCULAR CHANNELS
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DOI：
10.1016/0017-9310(73)90033-1
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发表时间：
1973-05
期刊：
影响因子：
--
通讯作者：
K. Rehme
中科院分区：
文献类型：
--
作者：
K. Rehme
本文根据一个简单模型的摩擦系数关系，提出了一种方法，只要已知层流压降关系的几何因子，就可以预测非圆通道内紊流的摩擦系数。所提出的计算方法进行了测试与大量的实验结果，从文献中的非圆形通道，如三角形管道，偏心环和棒束的六边形和正方形阵列的圆管，六边形和正方形通道。事实证明，所提出的方法提供了一个很好的描述手头的所有实验数据。
On the basis of friction factor relationships of a simple model a method is developed which allows the prediction of friction factors for turbulent flow in non-circular channels if only the geometry factor of the pressure drop relationship for laminar flow is known. The proposed method of calculation is tested with numerous experimental results from the literature with respect to non-circular channels such as triangular shaped ducts, eccentric annuli and rod bundles in hexagonal and square arrays in circular tubes, hexagonal and square channels. It turns out that the proposed method provides an excellent description of all the experimental data at hand.