Transport in Porous Media最新文献

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A Temporally Relaxed Theory for Non-equilibrium Multispecies Contaminants Transport in Finite Media with Time-Varying Boundary Conditions 具有时变边界条件的非平衡多物种污染物在有限介质中迁移的时间松弛理论
IF 2.7 3区 工程技术
Transport in Porous Media Pub Date : 2025-04-11 DOI: 10.1007/s11242-025-02170-8
Vincent de Paul Chakam, Serge Mbida Mbembe, Bertrand Akamba Mbembe, André Aimé Atangana Likéné, Thomas Tjock-Mbaga, Annie Sylvie Wakata Beya, Germain Hubert Ben-Bolie
{"title":"A Temporally Relaxed Theory for Non-equilibrium Multispecies Contaminants Transport in Finite Media with Time-Varying Boundary Conditions","authors":"Vincent de Paul Chakam,&nbsp;Serge Mbida Mbembe,&nbsp;Bertrand Akamba Mbembe,&nbsp;André Aimé Atangana Likéné,&nbsp;Thomas Tjock-Mbaga,&nbsp;Annie Sylvie Wakata Beya,&nbsp;Germain Hubert Ben-Bolie","doi":"10.1007/s11242-025-02170-8","DOIUrl":"10.1007/s11242-025-02170-8","url":null,"abstract":"<div><p>The fate of multispecies contaminants in groundwater is often studied using conventional advection–dispersion equations (ADEs) coupled with first-order decay reactions describing the Fickian and non-Fickian solute transport behavior. This study presents a novel approach for multispecies contaminants transport in heterogeneous porous media that is founded on the temporally relaxed theory of Fick’s Law. The methodology introduces two relaxation times to account for solute particle collisions and attachment, leading to the derivation of new coupled ADEs. The semi-analytical solution is obtained in the Laplace domain after a linear transformation of Clement to address the mathematical complexity of the problem. The model’s simulation results show excellent agreement with semi-analytical models and existing analytical solutions for multispecies contaminants transport in Fickian and non-Fickian transport concepts. Results obtained demonstrated that the effects of time lagging of the temporal and spatial distribution of each species of the decay chain depend on the retardation factor, decay constant as well as input distribution of each member. Additionally, the temporal relaxed theory can quickly assess the risks incurred by drinking groundwater contaminated by radionuclides as shown in the application to <span>({}^{238}{text{Pu}})</span> the decay chain in a waste deposition site. This innovative approach provides an in-depth understanding of the transport of contaminants from multiple species and its impact on groundwater contamination. The temporal relaxed theory seems promising for more accurately estimating the risks associated with decay chains, such as radionuclides.</p></div>","PeriodicalId":804,"journal":{"name":"Transport in Porous Media","volume":"152 5","pages":""},"PeriodicalIF":2.7,"publicationDate":"2025-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143818299","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A Reactive Transport Model for Concrete Exposed to Cyclic Wetting/Drying: Salt Crystallization, Carbonation, Leaching, and Beyond 混凝土在循环润湿/干燥条件下的反应迁移模型:盐结晶、碳化、浸出及其他
IF 2.7 3区 工程技术
Transport in Porous Media Pub Date : 2025-04-11 DOI: 10.1007/s11242-025-02175-3
Licheng Wang, Chengyu Wu, Kefei Li, Yudong Han, Rongwei Yang
{"title":"A Reactive Transport Model for Concrete Exposed to Cyclic Wetting/Drying: Salt Crystallization, Carbonation, Leaching, and Beyond","authors":"Licheng Wang,&nbsp;Chengyu Wu,&nbsp;Kefei Li,&nbsp;Yudong Han,&nbsp;Rongwei Yang","doi":"10.1007/s11242-025-02175-3","DOIUrl":"10.1007/s11242-025-02175-3","url":null,"abstract":"<div><p>The durability of concrete structures in marine and salt lake has been of great concern to civil engineering community. As a better alternative to durability assessment and service-life prediction, physical-based models have been widely accepted and employed. Among these models, while either transport behavior or reaction issues of concrete have been essentially stressed, coupling of both transport and reaction remains an open question. A comprehensive reactive transport model, accounting for hydro-ionic chloride transport, chloride binding, salt crystallization, natural carbonation, and leaching, is developed in this work to investigate the evolutions of chloride distribution, phase assemblage, and porosity of concrete exposed to different wetting/drying regimes and different concentrations of immersed salt solutions. Model results show that a high wetting/drying ratio facilitates leaching of concrete, leading to a pronounced increase in porosity and penetration depth of chloride; compared with the filling effect of calcium carbonate on porosity induced by natural carbonation, leaching plays a dominating role in elevation of porosity of cover concrete. NaCl crystals are absent when concrete is exposed to marine environment (3.5 wt.% NaCl); however, in salt-lake environment (10 wt.% NaCl, 15 wt.% NaCl), NaCl crystals precipitate on superficial region of concrete; the higher the exposure time, immersion solution concentration and wetting/drying ratio are, the higher the ratio of [Cl<sup>−</sup>]/[OH<sup>−</sup>] of the pore solution in concrete is, and the deeper the potential corrosion depth is.</p></div>","PeriodicalId":804,"journal":{"name":"Transport in Porous Media","volume":"152 5","pages":""},"PeriodicalIF":2.7,"publicationDate":"2025-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143818298","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A Data-Driven Approach for Efficient Prediction of Permeability of Porous Rocks by Combining Multiscale Imaging and Machine Learning 结合多尺度成像和机器学习,高效预测多孔岩石渗透性的数据驱动方法
IF 2.7 3区 工程技术
Transport in Porous Media Pub Date : 2025-04-02 DOI: 10.1007/s11242-025-02167-3
Iman Nabipour, Maysam Mohammadzadeh-Shirazi, Amir Raoof, Jafar Qajar
{"title":"A Data-Driven Approach for Efficient Prediction of Permeability of Porous Rocks by Combining Multiscale Imaging and Machine Learning","authors":"Iman Nabipour,&nbsp;Maysam Mohammadzadeh-Shirazi,&nbsp;Amir Raoof,&nbsp;Jafar Qajar","doi":"10.1007/s11242-025-02167-3","DOIUrl":"10.1007/s11242-025-02167-3","url":null,"abstract":"<div><p>Digital rock physics has increasingly become an emerging field in which advanced numerical simulation and high-resolution imaging are combined to accurately predict rock properties. In this context, multiscale imaging is crucial for fully capturing the inherent heterogeneity of natural rocks. However, limitations in resolution and field of view (FOV) present significant challenges. Direct numerical simulations at large scales are often not computationally practical or may be too expensive. The compromise between FOV and resolution is particularly pronounced in the complex multiscale pore structures of porous rocks, including carbonates in particular. To address this issue, we propose an innovative machine learning technique that integrates multiscale imaging data at varying resolutions. For the rock sample, we used the imaging data published by Nabipour et al. (Adv Water Resour 104695, 2024) in three resolutions. Our approach employs an optimized neural network design combined with a transfer learning strategy, enabling the identification of complex cross-scale correlations that were previously unattainable with conventional methods. The results demonstrate that this multiscale neural network approach effectively estimates permeability by analyzing various aspects of pore morphology across different scales. In particular, we achieved high accuracy, as evidenced by R-squared coefficients of 0.966 for training and 0.836 for testing in low-resolution domains, and also significantly enhanced computational efficiency, reducing the overall computational time. Despite being tested for images of carbonate rocks, the developed method is adaptable to a wide range of multiscale porous materials and offers a promising solution to the persistent challenge of balancing imaging resolution with FOV.</p></div>","PeriodicalId":804,"journal":{"name":"Transport in Porous Media","volume":"152 4","pages":""},"PeriodicalIF":2.7,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s11242-025-02167-3.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143761756","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A Lightweight Multi-scale Neural Network for Inversion of NMR Relaxation Measurements in Porous Media 多孔介质核磁共振弛豫测量反演的轻量级多尺度神经网络
IF 2.7 3区 工程技术
Transport in Porous Media Pub Date : 2025-03-29 DOI: 10.1007/s11242-025-02164-6
Gang Luo, Branko Bijeljic, Sihui Luo, Lizhi Xiao, Rongbo Shao, Martin J. Blunt
{"title":"A Lightweight Multi-scale Neural Network for Inversion of NMR Relaxation Measurements in Porous Media","authors":"Gang Luo,&nbsp;Branko Bijeljic,&nbsp;Sihui Luo,&nbsp;Lizhi Xiao,&nbsp;Rongbo Shao,&nbsp;Martin J. Blunt","doi":"10.1007/s11242-025-02164-6","DOIUrl":"10.1007/s11242-025-02164-6","url":null,"abstract":"<div><p>Nuclear magnetic resonance (NMR) can be used to find fluid type and pore size distribution in rocks. Low-field NMR employs Carr–Purcell–Meiboom–Gill pulse sequences to measure reservoir rock properties, where echo signals are inverted to determine <i>T</i><sub>2</sub> relaxation times. Further analysis provides petrophysical parameters and fluid classification. However, noise and the ill-posed nature of inversion lead to low-resolution <i>T</i><sub>2</sub> spectra, complicating fluid quantification. This study introduces LMsNN, a lightweight multi-scale neural network, to enhance the accuracy of <i>T</i><sub>2</sub> spectrum inversion. By incorporating physical response equations and constraints, LMsNN reduces artifacts and enhances optimization robustness. We validate the method using numerical simulations and direct rock sample measurements, comparing it with two traditional inversion techniques. Results show that LMsNN effectively processes low signal-to-noise ratio, improving fluid identification across rock types. We further applied LMsNN to NMR well log data, where the porosity derived from the inverted <i>T</i><sub>2</sub> spectra closely matched direct rock sample measurements. These findings demonstrate that LMsNN significantly improves NMR relaxation spectrum resolution, offering a more reliable and robust approach for fluid characterization.</p></div>","PeriodicalId":804,"journal":{"name":"Transport in Porous Media","volume":"152 4","pages":""},"PeriodicalIF":2.7,"publicationDate":"2025-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143726729","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Open Boundaries, Anomalous Diffusion and the Darcy-Bénard Instability 开放边界、异常扩散与达西-巴纳德不稳定性
IF 2.7 3区 工程技术
Transport in Porous Media Pub Date : 2025-03-25 DOI: 10.1007/s11242-025-02160-w
A. Barletta, D. A. S. Rees, M. Celli, P. V. Brandão
{"title":"Open Boundaries, Anomalous Diffusion and the Darcy-Bénard Instability","authors":"A. Barletta,&nbsp;D. A. S. Rees,&nbsp;M. Celli,&nbsp;P. V. Brandão","doi":"10.1007/s11242-025-02160-w","DOIUrl":"10.1007/s11242-025-02160-w","url":null,"abstract":"<div><p>The classical problem of the Darcy-Bénard instability in a horizontal porous layer saturated by a binary fluid mixture and subject to a non-uniform solutal concentration field is revisited. In particular, a generalised anomalous diffusion model departing from the classical Fickian diffusion and accounting for subdiffusion or superdiffusion phenomena is employed. At the porous layer boundaries, a uniform vertical concentration gradient is imposed, so that an unstable density stratification arises. The boundaries are modelled as open, meaning that uniform pressure conditions are prescribed. A linear stability analysis of the basic rest state is carried out, showing how the departure from the classical Fickian diffusion affects dramatically the conditions for the onset of the instability.</p></div>","PeriodicalId":804,"journal":{"name":"Transport in Porous Media","volume":"152 4","pages":""},"PeriodicalIF":2.7,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s11242-025-02160-w.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143698559","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Impact of Structural Variations in Gas Diffusion Layers on Effective Mass Transfer in PEMFCs Using the Lattice Boltzmann Method 用晶格玻尔兹曼方法研究气体扩散层结构变化对pemfc有效传质的影响
IF 2.7 3区 工程技术
Transport in Porous Media Pub Date : 2025-03-24 DOI: 10.1007/s11242-025-02163-7
Khanh-Hoan Nguyen, Kyoungsik Chang, Sadia Siddiqa
{"title":"Impact of Structural Variations in Gas Diffusion Layers on Effective Mass Transfer in PEMFCs Using the Lattice Boltzmann Method","authors":"Khanh-Hoan Nguyen,&nbsp;Kyoungsik Chang,&nbsp;Sadia Siddiqa","doi":"10.1007/s11242-025-02163-7","DOIUrl":"10.1007/s11242-025-02163-7","url":null,"abstract":"<div><p>In this paper, a thorough computational model is used to investigate the heterogeneous mass transport properties in the gas diffusion layers (GDLs) of proton exchange membrane fuel cells (PEMFCs). In PEMFCs, the GDL is essential for the movement of reaction gases and the expulsion of water generated during the process. One strategic way to improve PEMFC performance is to alter the GDL structure. Therefore, this paper introduces the structural modifications in the GDL to improve and optimize fuel cell efficiency. The GDLs are stochastically reconstructed in four distinct configurations: fixed-diameter fibers, fixed-diameter spheres, random-diameter spheres, and a combination of fixed-diameter fiber/spherical. These structures are considered to quantify their influence on diffusion within the GDL. The lattice Boltzmann method (LBM) is employed to simulate the GDL model via OpenLB. The results reveal that variations in structure, thickness, and porosity lead to changes in pore size, shape, and distribution, thereby significantly influencing mass transport properties. The findings indicate that the flow of flux through the entire GDL is easier in a spherical structure as compared to a fiber structure. This analytical approach provides valuable insights into microscopic flow phenomena within porous structures and their consequential impact on macroscopic transport properties.</p></div>","PeriodicalId":804,"journal":{"name":"Transport in Porous Media","volume":"152 4","pages":""},"PeriodicalIF":2.7,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143676237","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Density Effects on Mixing in Porous Media: Multi-dimensional Flow-Through Experiments and Model-Based Interpretation 密度对多孔介质混合的影响:多维流动实验和基于模型的解释
IF 2.7 3区 工程技术
Transport in Porous Media Pub Date : 2025-03-22 DOI: 10.1007/s11242-025-02161-9
Yu Ye, Sen Liu, Gabriele Chiogna, Chunhui Lu, Massimo Rolle
{"title":"Density Effects on Mixing in Porous Media: Multi-dimensional Flow-Through Experiments and Model-Based Interpretation","authors":"Yu Ye,&nbsp;Sen Liu,&nbsp;Gabriele Chiogna,&nbsp;Chunhui Lu,&nbsp;Massimo Rolle","doi":"10.1007/s11242-025-02161-9","DOIUrl":"10.1007/s11242-025-02161-9","url":null,"abstract":"<div><p>Density effects can strongly impact flow, solute transport and mixing processes in porous media. In this study, we systematically investigate and compare variable-density flow and transport in quasi two-dimensional and fully three-dimensional porous media using laboratory flow-through experiments and numerical simulations. Sodium chloride was used as conservative tracer in the experiments, with injected concentrations of 4.8 and 20 g/l, respectively. Average flow velocities of 1, 3, 9 and 27 m/d were selected to represent a wide range of advection-dominated flow conditions (Péclet number 3–100). Numerical simulations were performed to quantitatively interpret the bench-scale experiments, as well as to extend the investigation to a larger domain, allowing the analysis of the impact of a wider range of injected concentrations (0.01–65 g/l) and average flow velocities (0.5–30 m/d). Our results reveal distinct plume patterns, including fingering instabilities, sinking and secondary motion, depending on the density difference, on the average flow velocity and on the dimensionality of the system. The latter plays a key role in causing convective rolls, in the rapid sinking of the injected electrolyte plume, and in preventing the onset of fingering instabilities in the 3-D setups. The outcomes of the flow-through experiments, numerical simulations, and Shannon entropy analysis of mixing enhancement by density gradients illuminate a different mixing behavior, under distinct advection-dominated flow regimes, in quasi 2-D and fully 3-D flow-through systems.</p></div>","PeriodicalId":804,"journal":{"name":"Transport in Porous Media","volume":"152 4","pages":""},"PeriodicalIF":2.7,"publicationDate":"2025-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143668212","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A Temporally Relaxed Theory of Nonequilibrium Solute Transport in Porous Media With Spatial Dispersivity Involving Flexible Boundary 含柔性边界的空间色散多孔介质中非平衡溶质输运的时间放宽理论
IF 2.7 3区 工程技术
Transport in Porous Media Pub Date : 2025-03-22 DOI: 10.1007/s11242-025-02162-8
Joseph Antoine Nyoumea, Thomas Tjock-Mbaga, Ali Zarma, Jean Marie Ema’a Ema’a, Patrice Ele Abiama, Germain Hubert Ben-Bolie
{"title":"A Temporally Relaxed Theory of Nonequilibrium Solute Transport in Porous Media With Spatial Dispersivity Involving Flexible Boundary","authors":"Joseph Antoine Nyoumea,&nbsp;Thomas Tjock-Mbaga,&nbsp;Ali Zarma,&nbsp;Jean Marie Ema’a Ema’a,&nbsp;Patrice Ele Abiama,&nbsp;Germain Hubert Ben-Bolie","doi":"10.1007/s11242-025-02162-8","DOIUrl":"10.1007/s11242-025-02162-8","url":null,"abstract":"<div><p>Groundwater is a vital drinking water source in tropical regions and supports many human activities. However, its pollution poses significant challenges. Researchers study pollutant behavior in porous media using advection–dispersion equations (ADEs), which account for Fickian and non-Fickian solute transport. This study presents a novel approach to solute transport in a medium with spatially variable dispersivity based on the temporally relaxed theory of Fick's Law. The methodology introduces two relaxation times accounting for solute particles' collisions and attachment, deriving a new ADE. The Darcy velocity is considered as a linear spatial function, and the dispersion coefficient is assumed to be proportional to the square of the velocity. Our findings indicate that the temporally relaxed theory can reproduce the solute transport behavior described by the existing two-stage models, equilibrium models in medium with constant and variable dispersivity. Additionally, the relaxation times significantly affect the temporal and spatial distribution of solute concentration and the remediation time. The effects depend on the input distribution, the position, and the heterogeneity parameter. The relaxation times possess similar properties to the transport parameters in the mobile-immobile and rate-limited sorption models. Time laggings can capture non-linear phenomena, including memory effects, nonequilibrium dynamics, multi-scale behavior, and anomalous transport, such as superdiffusion, subdiffusion, and long-tailed transport. This model can be applied to accurately predict transport parameters from soil column experiments and actual field conditions. This innovative approach provides a deeper insight into solute transport and its impact on groundwater contamination.</p></div>","PeriodicalId":804,"journal":{"name":"Transport in Porous Media","volume":"152 4","pages":""},"PeriodicalIF":2.7,"publicationDate":"2025-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143676385","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Discrete Exterior Calculus Method for Groundwater Flow Modeling 地下水流建模的离散外部微积分方法
IF 2.7 3区 工程技术
Transport in Porous Media Pub Date : 2025-03-18 DOI: 10.1007/s11242-025-02159-3
Jin Xu, Wenfan Zhang, Zheng Chen
{"title":"Discrete Exterior Calculus Method for Groundwater Flow Modeling","authors":"Jin Xu,&nbsp;Wenfan Zhang,&nbsp;Zheng Chen","doi":"10.1007/s11242-025-02159-3","DOIUrl":"10.1007/s11242-025-02159-3","url":null,"abstract":"<div><p>A numerical formula for modeling groundwater flow is presented in this study, derived from the principles of discrete exterior calculus (DEC). The study begins with transforming the governing equations for unsteady flow into formulas in the framework of exterior calculus, utilizing differential forms and their operators. The spatial discretization of the exterior calculus formula is based on the conception of simplicial complex and its dual mesh, while the time derivative term is discretized using the difference numerical scheme. Following the above discretization scheme, a mixed numerical formulation was developed, with flux and pressure as primary variables. To evaluate the DEC-based method’s effectiveness and accuracy in modeling groundwater flow, an extensive numerical study is conducted. The assessment includes comparisons with analytical solutions, such as Theis’s solution for a single well, as well as numerical results obtained from simulating multi-well pumping scenarios using established methods. The solutions exhibit a high degree of consistency with both analytical and numerical results. Furthermore, the results demonstrate the applicability of the proposed approach in more complex settings, ranging from pit dewatering with a waterproof curtain to three-dimensional flow with cutoff barriers. The results illustrate the potential of the DEC method as an effective groundwater solver, distinguished by its excellent local mass conservation.</p></div>","PeriodicalId":804,"journal":{"name":"Transport in Porous Media","volume":"152 3","pages":""},"PeriodicalIF":2.7,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143638322","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Diffusion Model-Based Generation of Three-Dimensional Multiphase Pore-Scale Images 基于扩散模型的三维多相孔隙尺度图像生成
IF 2.7 3区 工程技术
Transport in Porous Media Pub Date : 2025-03-17 DOI: 10.1007/s11242-025-02158-4
Linqi Zhu, Branko Bijeljic, Martin J. Blunt
{"title":"Diffusion Model-Based Generation of Three-Dimensional Multiphase Pore-Scale Images","authors":"Linqi Zhu,&nbsp;Branko Bijeljic,&nbsp;Martin J. Blunt","doi":"10.1007/s11242-025-02158-4","DOIUrl":"10.1007/s11242-025-02158-4","url":null,"abstract":"<div><p>We propose a diffusion model-based machine learning method for generating three-dimensional images of both the pore space of rocks and the fluid phases within it. This approach overcomes the limitations of current methods, which are restricted to generating only the pore space. Our reconstructed images accurately reproduce multiphase fluid pore-scale details in water-wet Bentheimer sandstone, matching experimental images in terms of two-point correlation, porosity, and fluid flow parameters. This method outperforms generative adversarial networks with a broader and more accurate parameter range. By enabling the generation of multiphase fluid pore-scale images of any size subject to computational constraints, this machine learning technique provides researchers with a powerful tool to understand fluid distribution and movement in porous materials without the need for costly experiments or complex simulations. This approach has wide-ranging potential applications, including carbon dioxide and underground hydrogen storage, the design of electrolyzers, and fuel cells.</p></div>","PeriodicalId":804,"journal":{"name":"Transport in Porous Media","volume":"152 3","pages":""},"PeriodicalIF":2.7,"publicationDate":"2025-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s11242-025-02158-4.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143632516","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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