Article
Energy & Fuels
Xue-Yi Zhang, Zhi Dou, Jin-Guo Wang, Zhi-Fang Zhou, Chao Zhuang
Summary: Compared to single layer porous media, fluid flow through layered porous media with contrasting pore space structures is more complex. This study constructed three-dimensional pore-scale layered porous media and analyzed the influence of interfaces on non-Darcy flow behavior. The results indicate that existing correlations based on single layer porous media fail to accurately predict the flow behavior of layered porous media.
Review
Chemistry, Multidisciplinary
Hossam A. Nabwey, Taher Armaghani, Behzad Azizimehr, Ahmed M. Rashad, Ali J. Chamkha
Summary: This paper presents a review of recent advances in the application of nanofluids in heat transfer in porous materials. The top papers published between 2018 and 2020 were scrutinized to provide valuable insights. Various analytical methods used to describe flow and heat transfer in porous media were thoroughly reviewed, as well as the models used to simulate nanofluids. The reviewed research focused on natural convection, forced convection, and mixed convection heat transfer of nanofluids in porous media. Statistical analysis revealed important findings regarding the impact of parameters such as nanofluid type and flow domain geometry. Furthermore, the paper highlighted the most commonly studied nanofluid and geometry.
Article
Geochemistry & Geophysics
Ashes Banerjee, Sarath Chandra K. Jagupilla, Srinivas Pasupuleti, Chandra Sekhara Rao Annavarapu
Summary: This study investigates the flow characteristics of nonlinear filtration in porous packing and attempts to develop an empirical model that can be widely applied. By optimizing coefficient values, the performance of the model can be significantly improved. The study finds that media size has a greater influence on the coefficients than other parameters. The empirical models show reliable performance in predicting flow properties in porous media.
Article
Materials Science, Multidisciplinary
Fabian B. Wadsworth, Jeremie Vasseur, Michael J. Heap, Lucille Carbillet, Donald B. Dingwell, Thierry Reuschle, Patrick Baud
Summary: Sintered materials are widely used in various applications, but a validated and general model of porosity and permeability is crucial. In this study, we prepare samples of different glass bead populations sintered at high temperature and measure their porosity and permeability. By combining our new dataset with published data, we find that a percolation theory model shows good agreement and requires no empirical adjustment. However, we propose some semi-empirical steps to generalize this model across all porosities. Additionally, we investigate the inertial component of fluid transport at high flow rates through these materials.
Article
Energy & Fuels
Abadelhalim Elsanoose, Ekhwaiter Abobaker, Faisal Khan, Mohammad Azizur Rahman, Amer Aborig, Stephen D. Butt
Summary: This study conducted a radial flow experiment to investigate the existence of non-Darcy flow and calculate the non-Darcy inertia coefficient. The experiments were performed on seven cylindrical perforated artificial porous media samples, and it was found that the non-Darcy flow exists even at very low flow rates. Additionally, the study revealed that the non-Darcy effect is not only caused by turbulence but also by inertial effects.
Article
Engineering, Chemical
Alessandro Lenci, Farhad Zeighami, Vittorio Di Federico
Summary: This study focuses on inertial flow in porous media governed by the Forchheimer equation and its relation to domain heterogeneity at the field scale. It proposes a method to derive formulae for the effective Forchheimer coefficient in perfectly stratified media. The effective Forchheimer coefficient varies with flow direction and is influenced by factors such as heterogeneity, exponent c, and permeability distribution.
TRANSPORT IN POROUS MEDIA
(2022)
Article
Chemistry, Multidisciplinary
Feng Xiong, Yijun Jiang, Chun Zhu, Lin Teng, Hao Cheng, Yajun Wang
Summary: This study focuses on the nonlinear flow in fractured porous media. The finite volume method is used to derive the discrete equations for Darcy flow in porous media and Forchheimer flow in fractures. A solution method for coupling flow is proposed. The results show that the hydraulic gradient of surrounding rock is characterized by large at the bottom and small at the top. The flow rate at the bottom of the tunnel is greater than that at the top. The distribution homogeneity and density of fractures are the most important factors that affect the hydraulic behavior of fractured rock tunnels.
APPLIED SCIENCES-BASEL
(2023)
Article
Thermodynamics
B. Shruti, Md. Mahbub Alam, A. Parkash, S. Dhinakaran
Summary: In this study, the combined impact of Darcy and Rayleigh number changes on natural convection around two vertically arranged hot porous cylinders of different diameters in a square enclosure is numerically evaluated. The numerical simulations are conducted using the lattice Boltzmann technique and the D2Q9 model. It is found that heat transfer rates improve with an increase in cylinder size, Ra, and Da.
CASE STUDIES IN THERMAL ENGINEERING
(2023)
Article
Physics, Multidisciplinary
Mehdi Ouada, Mohamed Kezzar, Nabil Talbi, Mohamed R. Eid, Mohamed Rafik Sari, W. M. Yousef, Essam M. Elsaid
Summary: In this work, the heat transfer processes of free convection and radiation on a porous moving longitudinal fin were numerically and analytically investigated. The use of a ternary hybridized nanofluid to wet the moving fin was considered, and the impacts of various factors on thermal profiles and thermal gradients were analyzed.
EUROPEAN PHYSICAL JOURNAL PLUS
(2023)
Article
Mathematics, Applied
Pierre-Henri Cocquet, Michael Rakotobe, Delphine Ramalingom, Alain Bastide
Summary: This paper deals with the finite element approximation of the Darcy-Brinkman-Forchheimer equation for porous media with spatially-varying porosity and mixed boundary conditions. It proves uniqueness of the solution under certain conditions and convergence of the finite element approximation. Numerical experiments are provided to illustrate the theoretical results.
JOURNAL OF COMPUTATIONAL AND APPLIED MATHEMATICS
(2021)
Article
Thermodynamics
Muzamil Hussain, Mikhail Sheremet
Summary: This study focuses on the novel analysis of buoyancy-driven nanofluid flow across a vertical stretching surface embedded in a porous medium, considering the effects of an inclined magnetic field and heating due to viscosity, thermal radiations, and heat source. By utilizing non-similar transformations and numerical methods, the impact of various factors on fluid velocity and temperature profile was investigated.
INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER
(2022)
Article
Thermodynamics
Muhammad Riaz, Nargis Khan, M. S. Hashmi, Reem K. Alhefthi, Mustafa Inc
Summary: This study analyzes the impact of using ZnO-SAE50 nanolubricant instead of conventional SAE50 oil on heat transfer performance. The results show that ZnO-SAE50 nanolubricant can improve heat transfer rate and reduce friction and heat loss.
CASE STUDIES IN THERMAL ENGINEERING
(2023)
Article
Thermodynamics
Ahmed Alshehri, Zahir Shah
Summary: The use of nanofluids in engineering and research has attracted significant interest. This study focuses on the impact of hybrid nanofluid and single nanofluid flow on a slippery nonlinear, non-uniform stretching surface, taking into account factors like radiative flux and heat source/sink. Mathematical modeling and numerical calculations were conducted using computational MATLAB software.
CASE STUDIES IN THERMAL ENGINEERING
(2022)
Article
Thermodynamics
Muhammad Jawad, Maria Kirn Hameed, Kottakkaran Sooppy Nisar, Afraz Hussain Majeed
Summary: This study investigates the effects of heat transfer and mass transfer on the convective Darcy-Forchheimer flow of a Maxwell nanofluid through a linear porous stretched sheet. The impacts of chemical reaction, thermal conductivity, and thermophoresis are also examined. The governing partial differential equations are converted into nonlinear ordinary differential equations using appropriate similarity variables, and a shooting method is applied to numerically solve the equations.
CASE STUDIES IN THERMAL ENGINEERING
(2023)
Article
Thermodynamics
Rouhollah Moosavi, Mehdi Banihashemi, Cheng-Xian Lin
Summary: This paper numerically investigates the thermal performance of a microchannel with different porous media insert configurations. Results show that the transverse arrangement of porous blocks at low Reynolds numbers and the longitudinal arrangement at high Reynolds numbers provide the best thermal performance. The highest thermal performance ratio is achieved when the porous material is placed along the walls in a longitudinal direction.
INTERNATIONAL JOURNAL OF NUMERICAL METHODS FOR HEAT & FLUID FLOW
(2022)
Article
Mathematics, Applied
Eugenio Aulisa, Sara Calandrini, Giacomo Capodaglio
APPLIED MATHEMATICS LETTERS
(2018)
Article
Mathematics, Applied
G. Ke, E. Aulisa, G. Dillon, V. Howle
APPLIED MATHEMATICS LETTERS
(2018)
Article
Mathematics, Applied
E. Aulisa, G. Bornia, S. Calandrini, G. Capodaglio
APPLIED NUMERICAL MATHEMATICS
(2018)
Article
Mathematics, Applied
Eugenio Aulisa, Sara Calandrini, Giacomo Capodaglio
COMPUTERS & MATHEMATICS WITH APPLICATIONS
(2018)
Article
Mathematics, Applied
E. Aulisa, G. Ke, S-Y. Lee
COMPUTERS & MATHEMATICS WITH APPLICATIONS
(2018)
Article
Engineering, Biomedical
Sara Calandrini, Giacomo Capodaglio, Eugenio Aulisa
INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN BIOMEDICAL ENGINEERING
(2018)
Article
Engineering, Biomedical
Sara Calandrini, Eugenio Aulisa
INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN BIOMEDICAL ENGINEERING
(2019)
Article
Mathematics, Applied
Eugenio Aulisa, Giacomo Capodaglio, Guoyi Ke
SIAM JOURNAL ON SCIENTIFIC COMPUTING
(2019)
Article
Physics, Mathematical
Pushpi Paranamana, Eugenio Aulisa, Akif Ibragimov, Magdalena Toda
JOURNAL OF MATHEMATICAL PHYSICS
(2019)
Article
Computer Science, Interdisciplinary Applications
Eugenio Aulisa, Giacomo Capodaglio
COMPUTERS & STRUCTURES
(2019)
Article
Mathematics, Applied
Eugenio Aulisa, Giorgio Bornia, Victoria Howle, Guoyi Ke
JOURNAL OF COMPUTATIONAL AND APPLIED MATHEMATICS
(2020)
Article
Engineering, Biomedical
Sara Calandrini, Eugenio Aulisa, Guoyi Ke
INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN BIOMEDICAL ENGINEERING
(2020)
Article
Computer Science, Software Engineering
Anthony Gruber, Eugenio Aulisa
ACM TRANSACTIONS ON GRAPHICS
(2020)
Article
Physics, Fluids & Plasmas
Erdi Kara, Aminur Rahman, Eugenio Aulisa, Souparno Ghosh
Meeting Abstract
Clinical Neurology
B. C. Duan, L. -C. Wong, W. -T. Lee
Article
Mathematics, Applied
Kevin J. Painter, Thomas Hillen, Jonathan R. Potts
Summary: The use of nonlocal PDE models in describing biological aggregation and movement behavior has gained significant attention. These models capture the self-organizing and spatial sorting characteristics of cell populations and provide insights into how animals perceive and respond to their surroundings. By deriving and analyzing these models, we can better understand biological movement behavior and provide a basis for explaining sociological phenomena.
MATHEMATICAL MODELS & METHODS IN APPLIED SCIENCES
(2024)
Article
Mathematics, Applied
Nicola Bellomo, Massimo Egidi
Summary: This paper focuses on Herbert A. Simon's visionary theory of the Artificial World and proposes a mathematical theory to study the dynamics of organizational learning, highlighting the impact of decomposition and recombination of organizational structures on evolutionary changes.
MATHEMATICAL MODELS & METHODS IN APPLIED SCIENCES
(2024)
Article
Mathematics, Applied
Tayfun E. Tezduyar, Kenji Takizawa, Yuri Bazilevs
Summary: This paper provides an overview of flows with moving boundaries and interfaces (MBI), which include fluid-particle and fluid-structure interactions, multi-fluid flows, and free-surface flows. These problems are frequently encountered in engineering analysis and design, and pose computational challenges that require core computational methods and special methods. The paper focuses on isogeometric analysis, complex geometries, incompressible-flow Space-Time Variational Multiscale (ST-VMS) and Arbitrary Lagrangian-Eulerian VMS (ALE-VMS) methods, and special methods developed in connection with these core methods.
MATHEMATICAL MODELS & METHODS IN APPLIED SCIENCES
(2024)