Flow characteristics and cuttings transport during high-voltage electric pulse rock-breaking
文献类型：期刊论文
| 作者 | Liu, Xianao5; Tan, Songcheng5; Ye, Xiaoping4; Li, Shaojun3; Li, Changping2; Duan, Longchen1,5 |
| 刊名 | PHYSICS OF FLUIDS
 |
| 出版日期 | 2025 |
| 卷号 | 37期号:1页码:17 |
| ISSN号 | 1070-6631 |
| DOI | 10.1063/5.0249363 |
| 英文摘要 | High-voltage electric pulse rock-breaking has shown great potential for application in breaking hard rock. However, there has been a lack of research on the design of the hydraulic structure of the electrode bit and the characteristics of the wellbore flow field and cuttings transport. In this paper, the hydraulic structure of the bit was designed, and the cuttings transport model was established based on the computational fluid dynamics-discrete element method. The effects of drilling parameters and hydraulic structure on the flow field and cuttings transport were studied. The results showed that the flow field could be divided into jet impact zone, overflow zone, dead zone, vortex zone, and up-return zone. Vortexes were formed outside the central nozzle. The cuttings formed the circular transport zones and the vertical particle belts during transport, with residuals in the dead zone. The effect of cuttings transport was improved with increased pump volume and drilling fluid viscosity. The increase in pump volume increased the hydraulic energy of the fluid. The increase in drilling fluid viscosity increased the viscous force of the fluid. Reducing the nozzle diameter increased the jet velocity and fluid shear and enhanced the ability of the fluid to suspend and carry cuttings, but the coverage areas were concentrated. The impact of a small nozzle angle was more concentrated, and the low-speed area was large, next only to the dead zone area. The research results had a certain application value for realizing high-voltage electric pulse continuous drilling and electrode bit hydraulic structure design. |
| 资助项目 | National Natural Science Foundation of China10.13039/501100001809[42272366] ; National Natural Science Foundation of China |
| WOS研究方向 | Mechanics ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:001397809200012 |
| 出版者 | AIP Publishing |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/37241]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Li, Changping; Duan, Longchen |
| 作者单位 | 1.China Univ Geosci, Natl Ctr Int Res Deep Earth Drilling & Resource De, Wuhan, Peoples R China 2.China Univ Geosci, Sch Mech Engn & Elect Informat, Wuhan, Peoples R China 3.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan, Peoples R China 4.Zhejiang Huadong Geotech Invest & Design Inst Co L, Hangzhou, Zhejiang, Peoples R China 5.China Univ Geosci, Fac Engn, Wuhan, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Xianao,Tan, Songcheng,Ye, Xiaoping,et al. Flow characteristics and cuttings transport during high-voltage electric pulse rock-breaking[J]. PHYSICS OF FLUIDS,2025,37(1):17. |
| APA | Liu, Xianao,Tan, Songcheng,Ye, Xiaoping,Li, Shaojun,Li, Changping,&Duan, Longchen.(2025).Flow characteristics and cuttings transport during high-voltage electric pulse rock-breaking.PHYSICS OF FLUIDS,37(1),17. |
| MLA | Liu, Xianao,et al."Flow characteristics and cuttings transport during high-voltage electric pulse rock-breaking".PHYSICS OF FLUIDS 37.1(2025):17. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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