考虑水温变化的微灌塑料管沿程水头损失计算公式探讨

A New Equation for Friction Loss along the Plastics Pipe of Micro-Irrigation with Variation in Water Temperature

根据已有的塑料管沿程水头损失计算公式 ,采用多元线性回归计算方法 ,提出了微灌塑料管沿程水头损失计算公式。该公式同时考虑了管径、流量和水温等因素的影响 ,使计算结果更加符合实际。通过分析认为 ,该公式能满足设计要求 ,可用于微灌工程的设计计算。

The new equation for friction loss along the plastics pipe of micro irrigation is presented using the multi regression analysis according to existing friction equation Also,such factors as pipe diameters,flow and water temperatures,etc,are taken into account in the equation,thus making calculated results adaptable to practice.Accordingly,the equation is considered to meet the design requirements and to be used in the design and calculation of micro irrigation engineering through analysis.