自十九世纪 Reynoldo 通过管道试验明确了水流的两种不同运动形态和Nikuradse 在管道中进行了更系统的试验以来,许多学者相继提出了各种表达形式的阻力系数公式。这些公式不仅数量繁多,而且其结构型式各有差异。为了更好地理解管流的阻力特性,本文对现有的管道阻力系数公式进行了分析和归纳,明确了描述阻力特性的基本公式。 Since the nineteenth century, Reynoldo pipeline experiment revealed two different flow patterns and Nikuradse conducts more systematic experiments in the pipeline, many scholars have put forward a variety of expression forms of resistance coefficient formula. Not only is the large number of these formulas, but also their structural patterns vary. In order to better understand the resistance characteristics of pipe flow, this paper analyzes and summarizes the existing pipe drag coefficient formula, and defines the basic formula describing the drag characteristic.