Discharge flow of granular particles through an orifice on a horizontal hopper:Effect of the hopper angle  

作　　者：Xin Wang Hong-Wei Zhu Qing-Fan Shi Ning Zheng 王欣;朱红伟;史庆藩;郑宁(School of Physics,Beijing Institute of Technology,Beijing 100081,China)

机构地区：[1]School of Physics,Beijing Institute of Technology,Beijing 100081,China

出　　处：《Chinese Physics B》2020年第4期312-315,共4页中国物理B（英文版）

基　　金：Project supported by the National Natural Science Foundation of China(Grant Nos.11475018 and 11974044);the National Key Research and Development Program of China(Grant 2016YFC1401001)。

摘　　要：We experimentally investigate the effect of the hopper angle on the flow rate of grains discharged from a twodimensional horizontal hopper on a conveyor belt.The flow rate grows with the hopper angle,and finally reaches a plateau.The curve feature appears to be similar for different orifice widths and conveyor belt-driven velocities.On the basis of an empirical law of flow rate for a flat-bottom hopper,we propose a modified equation to describe the relation between the flow rate and hopper angle,which is in a good agreement with the experimental results.

关 键 词：GRANULAR FLOW FLOW rate HOPPER ANGLE Beverloo law 

分 类 号：TH24[机械工程—机械制造及自动化]