基于室内试验,对2种管径的新型根渗灌管的水力性能进行了初步研究。结果表明,在微压(2.5~20kPa)水头工作下,2种管径根渗灌管的流量与压力之间都存在很好的幂函数关系;Φ50管各种组合和032管的孔距为1m、孔径为2mm组合的流量均匀系数(大于0.89)均较高;同一压力下,孔径是决定流量大小的主要控制因素,而相同管径同一组合条件下,压力是决定流量大小的主要控制因素。
The indoor experiments were performed to study the hydraulic property of the lwo types of root- seepage irrigalion pipe. The results revealed that there was a good power function between the flow and the work pressure of the pipe with two kinds of diameter; the flow uniformity coefficients of pipe of 50 mm in diameter and 32 mm in diameter with hole spacing of 1 m and aperture of 2 mm were all above 0.89; the main decisive factor of flow was aperture under the same work pressure, while the work pressure was the key factor under the same combined conditions and the same pipe diameter.