Results 91 to 100 of about 139,632 (315)

Asymmetry of cross kinetic coefficients in the cell model of a charged membrane [PDF]

Asymmetry
Theoretical study was performed earlier for the cell model of a charged porous membrane based on Onsager’s approach and the result was calculation of all electrokinetic coefficients.
Anatoly Filippov
doaj   +1 more source

Performance Analysis of Abradable Coating Systems for Aircraft Gas Turbines

Advanced Engineering Materials, EarlyView.
Three CoNiCrAlY/YSZ/MgAl2O4 abradable liner configurations on a nickel‐superalloy are evaluated by thermal‐gradient cycling and incursion tests. Laser ablation of the bondcoat and/or Y2O3‐stabilized ZrO2 (YSZ) intermediate layer increases mechanical interlocking and bonding for thick topcoats.
Hanna Heyl, Daniel Emil Mack, Martin Tandler, Susanne Schrüfer, Robert Vaßen   +4 more
wiley   +1 more source

A Subgrid-Scale Model for Turbulent Flow in Porous Media

, 2019
Given the analogy between the filtered equations of large eddy simulation and volume-averaged Navier–Stokes equations in porous media, a subgrid-scale model is presented to account for the residual stresses within the porous medium. The proposed model is
Fallahjoybari, Nima, Lundström, Staffan T., Fallahjoybari, Nima,, Lundström, Staffan T.,   +3 more
core   +1 more source

Hydrodynamic dispersion within porous biofilms [PDF]

, 2013
Many microorganisms live within surface-associated consortia, termed biofilms, that can form intricate porous structures interspersed with a network of fluid channels.
Osborne, James M., Pitt-Francis, J, Pitt−Francis, J., Quintard, Michel, Davit, Y, Byrne, H, Osborne, J, Davit, Y., Pitt-Francis, Joe, Davit, Yohan, Gavaghan, David, Gavaghan, D.J., Byrne, Helen, Osborne, J.M., Byrne, H.M., Quintard, M, Gavaghan, D   +16 more
core   +1 more source

Incorporation of Selenium into Sol–Gel‐Derived Bioactive Glass: Influence on Glass Structure, Bioactivity, and its Selective Cytotoxicity

Advanced Engineering Materials, EarlyView.
Selenium was incorporated into a sol–gel‐derived bioactive glass to enable sustained therapeutic ion release. The selenium‐containing glass preserved bioactivity while selectively inducing cytotoxicity in osteosarcoma cells and maintaining osteoblastic viability.
Breno Rocha Barrioni, Thalita Marcolan Valverde, Talita Martins, Guilherme Mattos Jardim Costa, Alfredo Miranda de Goes, Marcello Rosa Dumont, Eduardo Henrique Martins Nunes, Marivalda de Magalhães Pereira   +7 more
wiley   +1 more source

Effect of wind characteristics on gas dispersion in porous media

, 2017
9th International Conference on Porous MediaGreenhouse gases have the key role in global warming. Soil is a source of greenhouse gases such as methane (CH4).
Wilkinson, Stephen
core  

Natural convection and the evolution of a reactive porous medium

, 2011
We describe a mathematical model of buoyancy-driven flow and solute transport in a saturated porous medium, the porosity and permeability of which evolve through precipitation and dissolution as a mineral is lost or gained from the pore fluid. Imposing a
DAVID PRITCHARD, LINDSEY T. RITCHIE, Ritchie, Lindsey Thomson, Pritchard, David   +3 more
core   +1 more source

High-Accuracy Approximation of High-Rank Derivatives: Isotropic Finite Differences Based on Lattice-Boltzmann Stencils

The Scientific World Journal, 2014
We propose isotropic finite differences for high-accuracy approximation of high-rank derivatives. These finite differences are based on direct application of lattice-Boltzmann stencils.
Keijo Kalervo Mattila, Luiz Adolfo Hegele Júnior, Paulo Cesar Philippi   +2 more
doaj   +1 more source

A Simplified Laminar Flow Model for the Pultrusion of Glass Fiber/Polyethylene Terephthalate Commingled Yarns

Advanced Engineering Materials, EarlyView.
A simplified thermoplastic pultrusion model is developed to predict thermal fields in glass fiber/polyethylene terephthalate (GF/PET) composites with reduced computational cost. By combining effective material homogenization, validation against literature data, and Gaussian‐process‐based optimization, the study reveals how heating limits, pulling speed,
Elder Soares, Nadège Bouchonneau, Christian Jochum, Donald Radford   +3 more
wiley   +1 more source

Numerical Study of the Three-Dimensional Laminar Flow around a Cubic Metal Foam Cell [PDF]

Journal of Applied Fluid Mechanics
The present study examines numerically a three-dimensional (3D) laminar and stationary flow around an idealized metal foam cell shaped as an empty cube with cylindrical edges.
A. Amroune, B. Madani
doaj   +1 more source