Article
Thermodynamics
Guanyi Wang, Mamoru Ishii
Summary: The study evaluates the performance of existing two-group IATE models in predicting developing flows with intensive bubble coalescence at the bubbly to slug transition, revealing unsatisfactory results. By introducing a new intergroup wake-entrainment model, the prediction capability of IATE is significantly improved.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2021)
Article
Water Resources
Abdullah Aljasmi, Muhammad Sahimi
Summary: Advances in instrumentation have enabled high-resolution imaging of heterogeneous porous media, leading to the feasibility of direct numerical simulation of multiphase flow in two- and three-dimensional images. A bottleneck for image-based simulation is the lengthy computation time, which a new approach aims to overcome by utilizing curvelet transformations for denoising and faster computation. The proposed method demonstrates significant speedup in computational efficiency while maintaining accuracy in simulating multiphase flow in porous media.
ADVANCES IN WATER RESOURCES
(2021)
Article
Engineering, Multidisciplinary
Mohammad Ebadi, James Mcclure, Peyman Mostaghimi, Ryan T. Armstrong Australia
Summary: In this study, an extended model for multiphase flow in porous media based on first principles is proposed. The advantages of the extended model, including real-time tracking of specific interfacial area, are demonstrated through comparisons with traditional models and analytical solutions. Sensitivity and stability analyses reveal the importance of the balance between permeability of the porous media and interfacial permeability. The extended model offers a better understanding of the evolution of specific interfacial area during multiphase flow.
COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING
(2024)
Article
Nuclear Science & Technology
Longxiang Zhu, Zhiee Jhia Ooi, Caleb S. Brooks, Jianqiang Shan
Summary: A comprehensive review and validation of three approaches to predict interfacial area concentration in subcooled boiling flow are presented. The study shows that the most suitable semi-empirical or empirical correlations chosen to predict the interfacial area concentration are different in the low void fraction region and high void fraction region, and the closure model sensitivity in the IATE evaluation is analyzed for various factors such as bubble layer thickness models and PNVG determination approaches.
PROGRESS IN NUCLEAR ENERGY
(2021)
Article
Nuclear Science & Technology
Haoxiang Zhao, Liangxing Li, Xiangyu Li, Zhengzheng Zhang
Summary: To reduce the uncertainty in coolability estimate of debris bed in severe accidents in light water reactors, a study on the interfacial drag was conducted through two-phase flow tests. The results showed that the interfacial drag decreased with increasing gas flow velocity, implying a decrease in gas-liquid contact area.
ANNALS OF NUCLEAR ENERGY
(2022)
Article
Mechanics
Xinlei Qi, Shenghui Liu, Zhengliang Yu, Hedong Sun, Baohua Chang, Zhengyuan Luo, Bofeng Bai
Summary: This study delves into the dynamics of gas-water displacement in fractured porous media using a microfluidic device, revealing that the invasion pattern and interface morphology vary under different pressure conditions. A theoretical model was successfully established to predict the interfacial velocity of gas-water displacement under high pressure, providing valuable insights for preventing water invasion in natural gas reservoirs.
Article
Physics, Multidisciplinary
J. M. A. Sales, H. J. Seybold, C. L. N. Oliveira, J. S. Andrade
Summary: Two-phase flow through porous media can lead to the formation of drops and fingers, affecting macroscopic properties. In our simulation, we found that the system is ergodic for large volume fractions of the less viscous phase and high capillary numbers. Drop sizes follow a power-law scaling, with the exponent depending on the capillary number. The flow behavior changes at a characteristic capillary number, with large drops below and small droplets and finger-like structures dominating above. The temporal mean velocity of the mixture can be described by a generalized Darcy's law, and the exponent is sensitive to surface tension. In the limit of infinite capillary numbers, the mobility term increases exponentially with the saturation of the less viscous phase.
FRONTIERS IN PHYSICS
(2022)
Article
Nuclear Science & Technology
Seungjin Kim, Mamoru Ishii, Ran Kong, Guanyi Wang
Summary: This article discusses the development and application of the interfacial area transport equation (IATE), focusing on studies within the past decade. Through extensive experimental databases and the application of constitutive models, IATE has been successfully used to predict interfacial area concentration in two-phase flows, with validation in practical system analysis codes and computational fluid dynamics.
NUCLEAR ENGINEERING AND DESIGN
(2021)
Article
Mathematics
B. Amaziane, L. Pankratov, A. Piatnitski
Summary: The paper discusses the stochastic homogenization of a system modeling immiscible compressible two-phase flow in random porous media, and successfully proves the convergence of solutions.
JOURNAL OF DIFFERENTIAL EQUATIONS
(2021)
Article
Geosciences, Multidisciplinary
Yihuai Zhang, Branko Bijeljic, Ying Gao, Qingyang Lin, Martin J. Blunt
Summary: The study focuses on the pressure difference during two-phase flow across a sandstone sample with varying injection rates and fractional flows of water. It was observed that there is a transition from linear to non-linear flow with the power-law exponent depending on the fractional flow. By using energy balance, the onset of intermittency for a range of fractional flows, fluid viscosities, and rock types was accurately predicted.
GEOPHYSICAL RESEARCH LETTERS
(2021)
Article
Physics, Mathematical
Hiroshi Otomo, Rafael Salazar-Tio, Jingling Yang, Hongli Fan, Andrew Fager, Bernd Crouse, Raoyang Zhang, Hudong Chen
Summary: In this study, computational models and a methodology are developed for accurate multicomponent flow simulation in underresolved multiscale porous structures. The flow contributions from underresolved scales are taken into account by using precomputed physical properties and applied to simulations in the underresolved regions. Benchmark test cases are simulated to evaluate the accuracy and robustness of this method, and the results show high accuracy in capturing various flow patterns and properties.
COMMUNICATIONS IN COMPUTATIONAL PHYSICS
(2023)
Article
Water Resources
Mahdi Mansouri-Boroujeni, Cyprien Soulaine, Mohamed Azaroual, Sophie Roman
Summary: Immiscible two-phase flow through porous media is composed of a series of pore invasions. The consequences of pore-scale processes on macroscopic fluid front behavior are investigated. Different invasion mechanisms and front behaviors are characterized and correlated for various flow conditions. A new crossover flow regime is identified, showing mixed behavior between capillary and viscous dominated regimes. The global front behavior is predicted based on numerical simulations and experimental results for all flow regimes.
ADVANCES IN WATER RESOURCES
(2023)
Article
Environmental Sciences
Rui Wang, Maziar Arshadi, Ahmed Zankoor, Mohammad Piri
Summary: Pore space deformation can significantly affect the behavior of multiphase flow through porous media, leading to changes in permeability, relative permeability, and fluid distributions. However, the mechanisms relating pore-level fluid displacements with pore space deformation are not well understood. In this study, we conducted two-phase flow experiments on a water-wet sandpack under different stress conditions while imaging the pore space and fluid configurations. The results showed that pore space contraction influenced the frequency of different fluid displacement mechanisms and also affected the saturation and distribution of the fluids. The study also revealed that wetting and non-wetting phases responded differently to pore space deformation, resulting in changes in relative permeabilities.
WATER RESOURCES RESEARCH
(2022)
Article
Mechanics
L. C. Auton, S. Pramanik, M. P. Dalwadi, C. W. MacMinn, I. M. Griffiths
Summary: The study explores the link between microstructure and macroscale flow and transport through the use of homogenisation theory with idealised microstructures. The research focuses on the impact of obstacle size and spacing on macroscopic properties and provides insights for designing filters or studying transport impacts in soft porous media.
JOURNAL OF FLUID MECHANICS
(2021)
Article
Engineering, Mechanical
Yuto Takeuchi, Junichiro Takeuchi, Tomoki Izumi, Masayuki Fujihara
Summary: This study simulated two-dimensional flows through porous media with varied pore-scale heterogeneity and analyzed the non-Darcy flow effects. The results showed that pore-scale heterogeneity significantly influences the magnitude and onset of non-Darcy flow.
JOURNAL OF FLUIDS ENGINEERING-TRANSACTIONS OF THE ASME
(2021)
Review
Energy & Fuels
W. -B. Bartels, H. Mahani, S. Berg, S. M. Hassanizadeh
Article
Environmental Sciences
Gilian Schout, Niels Hartog, S. Majid Hassanizadeh, Rainer Helmig, Jasper Griffioen
JOURNAL OF CONTAMINANT HYDROLOGY
(2020)
Article
Engineering, Chemical
Thomas Sweijen, S. Majid Hassanizadeh, Hamed Aslannejad, Szymon Leszczynski
Article
Water Resources
Thomas Sweijen, S. Majid Hassanizadeh, Bruno Chareyre
ADVANCES IN WATER RESOURCES
(2020)
Article
Energy & Fuels
Lifei Yan, Hamed Aslannejad, S. Majid Hassanizadeh, Amir Raoof
Article
Environmental Sciences
J. A. Van Leeuwen, N. Hartog, J. Gerritse, C. Gallacher, R. Helmus, O. Brock, J. R. Parsons, S. M. Hassanizadeh
SCIENCE OF THE TOTAL ENVIRONMENT
(2020)
Article
Environmental Sciences
Reza Azimi, Abdorreza Vaezihir, Robert J. Lenhard, S. Majid Hassanizadeh
Article
Engineering, Chemical
D. A. M. de Winter, K. Weishaupt, S. Scheller, S. Frey, A. Raoof, S. M. Hassanizadeh, R. Helmig
Summary: This study demonstrates the complexity of steady-state flow through porous media using CLSM, micro-PIV, and numerical modeling. The results highlight the non-trivial streamline trajectories and Brownian motion contributing to hydrodynamic mixing, as well as challenges in upscaling hydrodynamic dispersion from pore scale to REV scale. The quantitative validation of CLSM-based data provides a valuable benchmark for validating computer simulation results.
TRANSPORT IN POROUS MEDIA
(2021)
Article
Chemistry, Applied
H. Aslannejad, S. Loginov, B. van der Hoek, E. M. Schoonderwoerd, H. C. Gerritsen, S. M. Hassanizadeh
Summary: Pore-scale two-phase flow simulations were conducted to study ink droplet movement into printed paper, which showed good agreement with confocal laser microscopy imaging. Factors such as liquid contact angle, ink properties, and droplet arrival velocity were found to significantly impact the final print quality. Faster penetration and irregular ink footprint shapes were observed at higher impact velocities, while ink viscosity and surface tension affected the rate of ink penetration compared to water.
PROGRESS IN ORGANIC COATINGS
(2021)
Article
Engineering, Chemical
Luwen Zhuang, S. Majid Hassanizadeh, Divesh Bhatt, C. J. van Duijn
Summary: This study has shown that accounting for the dynamic capillarity effect is crucial in simulating experimental results in thin porous media, as the standard Richards equation is insufficient. X-ray transmission method can be used to measure saturation distributions along the fibrous sample.
TRANSPORT IN POROUS MEDIA
(2021)
Article
Environmental Sciences
N. Seetha, S. Majid Hassanizadeh
Summary: Models commonly assume one-way coupling for the co-transport of colloids, but studies show this assumption is not always valid. A two-way coupled model is developed in this study to simulate the co-transport of two different colloids in porous media. The model performs well for most experimental conditions, except for specific cases involving certain colloids.
JOURNAL OF CONTAMINANT HYDROLOGY
(2022)
Article
Environmental Sciences
Monika S. Walczak, Hamidreza Erfani, Nikolaos K. Karadimitriou, Ioannis Zarikos, S. Majid Hassanizadeh, Vahid Niasar
Summary: Solute transport in heterogeneous and fractured systems is complex. The mass exchange rate coefficient changes with time, and the transfer rate coefficient is smaller during the unloading process, possibly due to concentration-dependent counter-current advection-diffusion.
WATER RESOURCES RESEARCH
(2022)
Article
Environmental Sciences
Samaneh Vahid Dastjerdi, Nikolaos Karadimitriou, S. Majid Hassanizadeh, Holger Steeb
Summary: This study investigates the combination of two extended continuum theories for two-phase flow through experimental microfluidic experiments. The results show that discriminating between connected and disconnected phases and considering interfacial area as a separate state variable is an effective way of modeling hysteresis in two-phase flow.
WATER RESOURCES RESEARCH
(2022)
Article
Pharmacology & Pharmacy
Mithushan Soundaranathan, Mohammed Al-Sharabi, Thomas Sweijen, Prince Bawuah, J. Axel Zeitler, S. Majid Hassanizadeh, Kendal Pitt, Blair F. Johnston, Daniel Markl
Summary: The study investigates the changes in the pore structure during pharmaceutical tablet disintegration. Experimental and modeling results demonstrate that the highest concentration of croscarmellose sodium (CCS) leads to the lowest swelling behavior due to pore closure. This study provides new insights into the impact of porosity and formulations on tablet performance.
Article
Environmental Sciences
J. Jayaraj, N. Seetha, S. Majid Hassanizadeh
Summary: Pore-network models are powerful tools for studying particle transport in complex porous media and investigating the role of interfaces. In this study, a 3D mathematical model is developed to simulate the transport and retention of nanoparticles within a single partially saturated pore. The model considers particle deposition at various interfaces and identifies the major retention site for particles.
WATER RESOURCES RESEARCH
(2023)
