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中文摘要：
为研究新型建筑给水管材的输水性能，对典型管材PP—R管、铝塑复合管、钢塑复合管进行了阻力特性与能耗特性的实验研究．通过实验研究，分析得出PP—R管输水中，当Re〈3326，沿程阻力系数A与雷诺数Re满足幂函数分布；Re〉3326，沿程阻力系数与雷诺数呈线性分布；PP—R管输水能量耗散率叼与雷诺数船呈幂函数分布．铝塑复合管的沿程阻力系数与雷诺数呈对数分布，其耗散率与雷诺数呈多项式分布．钢塑复合管的沿程阻力系数与耗散率和雷诺数关系均呈幂函数分布．此研究弥补了新型建筑给水管材阻力特性的空白．
英文摘要：
In order to research the capability of new material construction service pipe , the characteristic of resistance and energy losing of several type new material pipes are studied, such as PP-R pipe and aluminium and plastic pipe as well as steel and plastic pipe. Based on the experiment, it is gived that when Re 〈 3 326 in PP-R pipe the friction factor λ increases with Re in power function ,while Re 〉 3 326 the A increases with Re in linearity function . At the same time , the energy losing rate η of PP-R pipe increases with Re in power function . In aluminium and plastic pipe the λ increases with Re in logarithm function while the energy losing rate increases with Re in polynomial function . In steel and plastic pipe the λ and the energy losing rate increase with Re in power function. The study repairs the blank of the characteristic of resistance and losing energy of new material construction service pipes.
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