Analytical and experimental study of a reverse circulation drill bit with an annular slit

A new type of drill bit designed with an annular slit was developed to enhance the reverse circulation effect of the down-the-hole hammer drilling technology. A computational fluid dynamics code, Fluent, was used to simulate the flow phenomena inside the drill bit. The simulation results show that t...

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Bibliographic Details
Main Authors: Pinlu Cao, Yunwang Chen, Miaomiao Liu, Baoyi Chen, Jinsong Wang
Format: Article
Language:English
Published: SAGE Publishing 2016-09-01
Series:Advances in Mechanical Engineering
Online Access:https://doi.org/10.1177/1687814016669471