Results 51 to 60 of about 3,201,741 (356)

Asymptotic analysis of pollution filtration through thin random fissures between two porous media

, 2010
We describe the asymptotic behaviour of a filtration problem from a contaminated porous medium to a non-contaminated porous medium through thin vertical fissures of fixed height h>0, of random thinness of order {\epsilon} and which are $\epsilon ...
A. Brillard, Acerbi, Allaire, Arbogast, Attouch, Bear, Beavers, Bensoussan, Dal Maso, Egorova, Gikhman, Hornung, Jikov, M. El Jarroudi, M. El Merzguioui, Mikelic, Murat, Saffman, Sanchez-Palencia, Temam, Ventsell’   +20 more
core   +1 more source

Review of Foam with Novel CO₂-Soluble Surfactants for Improved Mobility Control in Tight Oil Reservoirs

Molecules
CO2-soluble surfactant foam systems have gained significant attention for their potential to enhance oil recovery, particularly in tight oil reservoirs where conventional water-soluble surfactants face challenges such as poor injectability and high ...
Fajun Zhao, Mingze Sun, Yong Liu, Wenjing Sun, Qinyuan Guo, Zian Yang, Changjiang Zhang, Meng Li   +7 more
doaj   +1 more source

Nonlocal porous medium equation: Barenblatt profiles and other weak solutions [PDF]

, 2013
A degenerate nonlinear nonlocal evolution equation is considered; it can be understood as a porous medium equation whose pressure law is nonlinear and nonlocal. We show the existence of sign changing weak solutions to the corresponding Cauchy problem. Moreover, we construct explicit compactly supported self-similar solutions which generalize Barenblatt
arxiv   +1 more source

Investigation on the thermal performance of phase change material/porous medium‐based battery thermal management in pore scale

International Journal of Energy Research, 2018
With the latent heat, the phase change material (PCM) is widely used in battery thermal management (BTM) to control the temperature. In this paper, the porous medium is employed to enhance the heat transfer of PCM.
Yutao Huo, Yunqi Guo, Zhonghao Rao
semanticscholar   +1 more source

Equilibrium phase transitions in a porous medium [PDF]

Physical Review B, 1996
Static critical phenomena of a three-dimensional Ising model confined in a porous medium made by spinodal decomposition have been studied using large-scale Monte Carlo simulations. We thus examine the influence of the geometry of Vycor-like materials on phase transitions.
MacFarland, T., Barkema, G.T., Marko, J.F.   +2 more
openaire   +4 more sources

Pressure Wave Interaction with Fractured Porous Zone in Porous Medium

Учёные записки Казанского университета: Серия Физико-математические науки
The propagation of a pressure wave in a porous medium with a fractured porous zone was numerically investigated. The study used a two-velocity model of a porous medium and a three-velocity model of a fractured porous medium. The problem was examined in a
A. A. Gubaidullin, O. Yu. Boldyreva, D. N. Dudko   +2 more
doaj   +1 more source

A stepwise emergence of evolution in the RNA world

FEBS Letters, EarlyView.
How did biological evolution emerge from chemical reactions? This perspective proposes a gradual scenario of self‐organization among RNA molecules, where catalytic feedback on random mixtures plays the central role. Short oligomers cross‐ligate, and self‐assembly enables heritable variations. An event of template‐externalization marks the transition to
Philippe Nghe
wiley   +1 more source

Thermohaline convection in a homogeneous porous medium

Hungarian Geophysics, 2021
The theoretical examination of the combined effect of heat and mass transfer in porous media is relevant to improve understanding thermohaline natural convection in both local- and basin-scale groundwater flow systems. Numerical model calculations were carried out to investigate the interaction of the temperature- (ΔT) and salinity-driven (Δc) natural ...
Szijártó, Márk, Galsa, Attila
openaire   +1 more source

Modeling and Asymptotic Analysis of Combustion of Solid Fuel Deposited over an Inert Porous Medium

Journal of Thermal Science and Technology, 2012
A simple mathematical model has been proposed for combustion of solid fuel deposited over an inert porous medium. The thermal nonequilibrium between the porous medium and gas is incorporated in the model considering two energy equations with different ...
Nepal Chandra ROY, Yuji NAKAMURA
doaj   +1 more source

Influence of high porous sponges for improving the interfacial evaporation from hemispherical solar distillers

Scientific Reports, 2023
The present study aims to improve the palatable water production from the hemispherical cover solar distiller (HSD). To augment the palatable water produced from the hemispherical cover, a black sponge was utilized as a porous medium using different ...
Ravishankar Sathyamurthy, A. E. Kabeel, Mohammed El Hadi Attia, Mohamed Abdelgaied, A. S. Abdullah, Kuma Gowwomsa Erko   +5 more
doaj   +1 more source