Experimental and numerical study on gas outburst with soil under gas expansion | |
Liu DN(刘丹宁); Li P(李鹏); Zhang XH(张旭辉); Lu XB(鲁晓兵); Qiao JY(乔继延); Leng ZP(冷振鹏); Zhang Y(张岩) | |
Source Publication | Proceedings of the International Offshore and Polar Engineering Conference |
2021 | |
Conference Name | 31st International Ocean and Polar Engineering Conference, ISOPE 2021 |
Conference Date | 20 June 2021 到 25 June 2021 |
Conference Place | Virtual, Online |
Abstract | The outburst fragmentation of soil caused by the dissociation of the gas hydrate was studied based on experiments and numerical simulation. The dense discrete particle model (DDPM) combined with the kinetic theory of granular flow (KTGF) was presented to reveal the outburst morphology of soil, considering the interphase forces and frictional effect between soil particles. The numerical simulation results in geometric features are consistent with the high-speed photography results. Moreover, the effects of initial gas pressure and thicknesses of the overlying layer on the occurrence of gas outburst were investigated in the experiments. © 2021 by the International Society of Offshore and Polar Engineers (ISOPE). |
Keyword | DDPM-KTGF model Gas hydrate Gas outburst Gas-solid flow |
Indexed By | EI |
Language | 英语 |
Document Type | 会议论文 |
Identifier | http://dspace.imech.ac.cn/handle/311007/87800 |
Collection | 流固耦合系统力学重点实验室 |
Affiliation | 1.Key Laboratory for Mechanics in Fluid Solid Coupling Systems, Institute of Mechanics, Chinese Academy of Sciences, Beijing, China 2.School of Engineering Science, University of Chinese Academy of Sciences, Beijing, China |
Recommended Citation GB/T 7714 | Liu DN,Li P,Zhang XH,et al. Experimental and numerical study on gas outburst with soil under gas expansion[C]Proceedings of the International Offshore and Polar Engineering Conference,2021. |
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