| 摘要: |
| 尾矿流槽保持不淤的最小流速称为临界流速,该流速对流槽设计有着重要意义.在浑水流动能量损失方程基础上,根据浑水流动临界流速的理念,采用求极值的方法,推得临界流速公式.该式综合了流槽与二相流的特性,考虑的因素较全面.并将计算结果与试验数据相比较,对比147个试验数据,其中计算相对误差小于10%的约占94%,说明该式的计算精度较高. |
| 关键词: 尾矿流槽 临界流速 临界坡度 |
| DOI： |
| 分类号:TV133 |
| 基金项目: |
|
| Calculation of the critical velocity and the critical slope of trailing hydro-transport in open channels |
|
HU Qu-lie1,XIONG Meng-jie2
|
|
HU Qu-lie1,XIONG Meng-jie2(1.Nanjing Hydraulic Research Institute,Nanjing 210029,China,2.Hohai University,Nanjing 210098,China)
|
| Abstract: |
| The minimun flow rate which can keep the open channel without siltation is called the critical velocity.It is significant to the design of trailing hydro-transport.According to the assumption of the minimum energy loss of the muddy water under the critical condition,a formula is obtained by using the differential method in maths.Based on both theory and experiments,the derivation process of this formula is clear and correct.Many factors such as the characteristic parameters of the open channel and the two-p... |
| Key words: trailing hydro-transport the critical velocity the critical slope |
