【摘要】 多孔软管平均单孔出流量是多孔软管水力特性中比较重要的特性之一。为了更好地研究自流多孔软管平均单孔出流量特性,实验中加大了多孔软管长度,并增设了坡度、孔口间距等因素。通过对实验数据的整理,本文给出了多孔软管在尾端封堵情况下多孔管的长度、孔间距、入口水头、铺设坡度对多孔管平均单孔出流量影响的定性分析。实验结果表明,平均单孔流量随着管长的增加而减少、随入口水头的增加而增加、随着软管铺设坡度增加而增加、随着孔距加大而增加,且增加的速度随着孔距的增大而减慢。更多还原

【Abstract】 The characteristics of the average single-hole flow of the gravity porous-hose is one of the most important characteristics of the gravity porous-hose.In order to discuss the characteristics of the average single-hole flow of the gravity porous-hose further,after increasing the length of the porous-hose and adding the factor—hose laying grade,and then we tried an experiment upon it.In the end of this experiment,we determined the rules of the average single-hole flow of the gravity porous-hose under changing the laying length of the porous-hose,the orifice interval of the porous-hose,the pressure head of the porous-hose and the laying grade of the porous-hose,through analyzing the experimental data.At the same time,we also carried out the rule of single-hole flow of the gravity porous-hose along the poroushose.The result of this experiment indicates that the average single-hole flow of the gravity porous-hose will decrease while the hose laying length increases,on the other hand,the average single-hole flow of the gravity porous-hose will increase while the orifice interval of theporous-hose,the pressure head of the porous-hose and the laying grade of the porous-hose increase.更多还原