气候变化领域集成服务门户(CCPortal): Simulation of multicomponent material seepage in porous media under strong discontinuous conditions

CCPortal

DOI	10.1360/SSPMA-2021-0163
	Simulation of multicomponent material seepage in porous media under strong discontinuous conditions
	Zhang, Xin; Cao, Yuan; Wang, Tieliang; He, Zeng; Hao, YouZhi; Lu, DeTang
通讯作者	Lu, DT (通讯作者)，Univ Sci & Technol China, Dept Modern Mech, Hefei 230027, Peoples R China.
发表日期	2022
ISSN	1674-7275
EISSN	2095-9478
卷号	52 期号:4
英文摘要	The strong discontinuity of porous media is manifested in the presence of extremely high temperature and pressure gradients between the explosive cavity of a formation and the surrounding media after an underground explosion. Because of the participation of explosive products, a multiphase and multicomponent seepage process is developed. Considering this situation, a numerical model of nonisothermal seepage flow for multiphase and multicomponent materials in porous media is established. In the numerical model, pressure and temperature are decoupled according to the velocity sensitive characteristics of heat convection while formation seepage has low velocity. The energy equation is calculated using an explicit method, while the seepage equation is calculated with a fully implicit method. Comparing the calculation results of isothermal and nonisothermal seepage environments, it is concluded that with the passage of time, the formation pressure in a nonisothermal environment first rises and then falls, and the closer the position is to the cavity, the faster the pressure rises. Under the influence of a temperature gradient, the formation pressure curve presents a wave shape, taking fifty-two hours to reach equilibrium; while in the case of isothermal seepage, the formation pressure curve is smoother and takes less time (forty-five hours) to reach equilibrium. Additionally, the numerical model can predict the diffusion process of each component gas in the formation. This has a guiding significance for pollution control and environmental remediation, such as diffusing ground pollutants, landfills, and harmful gases from ground blasting.
关键词	NUMERICAL-SIMULATION 2-PHASE FLOW BLACK-OIL MULTIPHASE MODEL
英文关键词	porous media; multi-phase; multi-component; temperature gradient; pressure gradient; gas-liquid transportation
语种	英语
WOS研究方向	Astronomy & Astrophysics ; Physics
WOS类目	Astronomy & Astrophysics ; Physics, Multidisciplinary
WOS记录号	WOS:000760350500003
来源期刊	SCIENTIA SINICA-PHYSICA MECHANICA & ASTRONOMICA
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/253887
作者单位	[Zhang, Xin; Hao, YouZhi; Lu, DeTang] Univ Sci & Technol China, Dept Modern Mech, Hefei 230027, Peoples R China; [Cao, Yuan; Wang, Tieliang; He, Zeng] Northwest Inst Nucl Technol, Xian 710024, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Xin,Cao, Yuan,Wang, Tieliang,et al. Simulation of multicomponent material seepage in porous media under strong discontinuous conditions[J]. 中国科学院西北生态环境资源研究院,2022,52(4).
APA	Zhang, Xin,Cao, Yuan,Wang, Tieliang,He, Zeng,Hao, YouZhi,&Lu, DeTang.(2022).Simulation of multicomponent material seepage in porous media under strong discontinuous conditions.SCIENTIA SINICA-PHYSICA MECHANICA & ASTRONOMICA,52(4).
MLA	Zhang, Xin,et al."Simulation of multicomponent material seepage in porous media under strong discontinuous conditions".SCIENTIA SINICA-PHYSICA MECHANICA & ASTRONOMICA 52.4(2022).