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Darcy to non-Darcy seepage transition in heterogeneous coarse-grained soil:Seepage characteristics and critical threshold prediction
《Journal of Rock Mechanics and Geotechnical Engineering》2025年第4期2526-2538,共13页Xin Zhang Yufeng Wei Guoxiang Tu Hao Yang Shixin Zhang Peng Liang 
supported by the National Nature Science Foundation of China (Grant No.42072303);the State Key Laboratory of Geohazard Prevention and Geoenvironment Protection Independent Research Project (Grant No.SKLGP2021Z004).
Seepage in coarse-grained soil exhibits distinct non-Darcy characteristics,and the transition from linear to nonlinear seepage significantly affects the hydraulic characteristics and geotechnical applications.Due to t...
关键词：Coarse-grained soil Porous media Seepage characteristics Non-Darcy seepage Pore characteristics 
A MIXED FINITE ELEMENT AND UPWIND MIXED FINITE ELEMENT MULTI-STEP METHOD FOR THE THREE-DIMENSIONAL POSITIVE SEMI-DEFINITE DARCY-FORCHHEIMER MISCIBLE DISPLACEMENT PROBLEM
《Acta Mathematica Scientia》2025年第2期715-736,共22页Yirang YUAN Changfeng LI Huailing SONG Tongjun SUN 
supported by the Natural Science Foundation of Shandong Province(ZR2021MA019);the National Natural Science Foundation of China(11871312)。
In this paper,a composite numerical scheme is proposed to solve the threedimensional Darcy-Forchheimer miscible displacement problem with positive semi-definite assumptions.A mixed finite element is used for the fow e...
关键词：Darcy-Forchheimer fow three-dimensional positive semi-definite problem upwind mixed finite element multi-step method conservation of mass convergence analysis 
一种具有二阶收敛性的Stokes-Darcy耦合问题的统一混合有限元近似
《应用数学进展》2025年第2期388-398,共11页谢富伟 马晓华 
文章给出了平面区域中Stokes-Darcy耦合问题的具有二阶收敛精度的统一近似格式。在这项工作中,我们修改了Darcy变分格式并增强了其正定性,使我们能够将P2元改进的Mini元应用于整个Stokes-Darcy耦合问题。此外,由于这种二阶格式在耦合界...
关键词：Stokes-Darcy耦合问题 混合有限元 统一近似 二阶收敛性 
How do Notch Shape and Boundary Conditions Affect the Hydro-Mechanical Behavior of Fractured Geomaterials?Findings via the Darcy-Brinkman-Biot Approach
《Journal of Earth Science》2025年第1期351-356,共6页Yi-Xiang Wang Xiao-Pei Guo Ling Xu Shi-Feng Lu 
supported by the National Key R&D Program of China(No.2023YFC3008401);the National Natural Science Foundation of China(No.42372307)。
0 INTRODUCTION Natural geomaterials,including soils and rocks,are invariably exposed to intricate stress conditions,in addition to water pressure,in various engineering contexts such as foundation treatment,mining,and...
关键词：bifurcation INVAR mining 
Regression analysis of squeezing-induced hybrid nanofluid flow in Darcy-Forchheimer porous medium
《Applied Mathematics and Mechanics(English Edition)》2025年第1期193-208,共16页K.MUHAMMAD M.SARFRAZ 
This article presents a mathematical model addressing a scenario involving a hybrid nanofluid flow between two infinite parallel plates.One plate remains stationary,while the other moves downward at a squeezing veloci...
关键词：convective boundary condition Darcy-Forchheimer medium hybrid nanofuid Joule heating magnetohydrodynamic(MHD) numerical solution squeezing flow regression analysis 
盾构地中对接法超前注浆扩散及堵水效果研究
《土木工程学报》2024年第S2期108-114,共7页陈星欣 陈雨洁 何明高 郭力群 杨智麟 谭华亮 
厦门市自然科学基金项目(3502Z202473045);江苏省隧道与地下工程技术研究中心开放基金研究计划(2023-SDJJ-06)。
采用“相向掘进、地中对接、弃壳解体”的盾构地中对接法时,防止拆机后临空面涌水是确保安全对接的关键。依托某盾构对接工程,通过Darcy两相流方程探究超前注浆浆液扩散形式和扩散范围,并依据浆液扩散范围对不同断裂带与对接点间距条件...
关键词：盾构对接 Darcy两相流 超前注浆 涌水量 数值模拟 
抽采钻孔孔周煤体瓦斯pre-Darcy/Darcy/non-Darcy渗流型态判定
《煤炭学报》2024年第S2期1025-1032,共8页庞明坤 潘红宇 朱诗鹏 纪翔 张天军 
国家自然科学基金面上资助项目(52274226,52104216,52304253)。
抽采钻孔的应力集中现象易导致孔周煤体结构产生不同程度的破坏,应力的重新分布也造成孔周形成大量的孔隙和裂隙网络,钻孔孔周“三区”结构的发育范围是判定有效抽采半径的关键指标,为了精准确定煤层瓦斯有效抽采半径进而合理确定孔间距...
关键词：渗流系统 破碎 前达西 流态转换 渗流特性 
An Effective Model for the Simulation of Transpiration Cooling
《Communications on Applied Mathematics and Computation》2024年第4期2064-2092,共29页Siegfried Müller Michael Rom 
Funding Open Access funding enabled and organized by Projekt DEAL.Financial support has been provided by the German Research Foundation(Deutsche Forschungsgemeinschaft-DFG)in the framework of the Sonderforschungsbereich Transregio 40.
Transpiration cooling is numerically investigated,where a cooling gas is injected through a carbon composite material into a hot gas channel.To account for microscale effects at the injection interface,an effective pr...
关键词：Transpiration cooling Darcy-Forchheimer flow Multiscale modeling Effective boundary conditions 
饱和黏弹性孔隙介质中压缩波的频散与衰减被引量：1
《岩土力学》2024年第10期2900-2906,共7页师文佳 丛琳 杨多兴 
内蒙古自治区科技重大专项(No.2021ZD0034);国家自然科学基金(No.41874113)。
波的频散现象及其成因是岩石物理学与孔隙介质声学研究的一个热点。基于Biot理论与Darcy-Brinkman定律,提出了Maxwell-Brinkman与Kelvin-Brinkman黏弹性孔隙介质力学模型,建立了压缩波的频散关系,揭示了波的频散与衰减规律,分析了应力...
关键词：BIOT理论 Darcy-Brinkman定律 孔隙介质 黏弹性 频散 品质因子 
Fully-Decoupled and Second-Order Time-Accurate Scheme for the Cahn–Hilliard Ohta–Kawaski Phase-Field Model of Diblock Copolymer Melt Confined in Hele–Shaw Cell
《Communications in Mathematics and Statistics》2024年第3期479-504,共26页Junying Cao Jun Zhang Xiaofeng Yang 
supported by National Natural Science Foundation of China(Grant Nos.11901135,11961009);Foundation of Guizhou Science and Technology Department,China(Grant No.[2020]1Y015);supported by the National Natural Science Foundation of China(Nos.11901132 and 62062018);Science and Technology Program of Guizhou Province(Nos.ZK[2022]006 and ZK[2022]031);Natural Science Research Projects of Education Department of Guizhou Province(No.KY[2021]015);Guizhou Key Laboratory of Big Data Statistics Analysis(No.BDSA20200102);supported by USA National Science Foundation with Grant Number DMS-2012490.
In this work,we consider numerical approximations of the phase-field model of diblock copolymer melt confined in Hele–Shaw cell,which is a very complicated coupled nonlinear system consisting of the Darcy equations a...
关键词：PHASE-FIELD Explicit-IEQ DARCY Decoupled Energy Stability Diblock copolymer melt 
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