Results 81 to 90 of about 5,282 (200)

Numerical modeling of thermophoresis and Brownian with heat transfer in shear-rate-dependent fluid: The finite element simulations

Case Studies in Thermal Engineering
This article discusses the simultaneous influence of thermophoresis, Brownian motion, and the dispersion of nanoparticles on thermal enhancement in non-Newtonian fluid existing over a surface stretching with non-uniform velocity.
M. Nawaz, Basit Ali, SayerObaid Alharbi, A.S. Shflot, M.Y. Malik, Abdelatif Salmi   +5 more
doaj   +1 more source

Static and Dynamic Analysis of Porous Gas Bearings Lubricated With Air, Refrigerant R‐134a, Helium and Hydrogen

Lubrication Science, Volume 38, Issue 5, Page 301-326, August 2026.
ABSTRACT Porous gas bearings (PGBs) enable high‐speed, oil‐free operation in modern rotating machinery. This study develops a coupled thermo‐hydrodynamic (THD) model for a cylindrical porous gas bearing lubricated with four working fluids—air, R‐134a, helium and hydrogen.
S. Bechiri, B. Bouchehit, B. Bou‐Saïd
wiley   +1 more source

Thermal Planar and Radial Free Jets for An Ostwald‐de Waele Fluid With Shear‐Rate Dependent Thermal Diffusivity

Mathematical Methods in the Applied Sciences, Volume 49, Issue 10, Page 10312-10333, 15 July 2026.
ABSTRACT The planar and radial thermal free jets for forced convection of a non‐Newtonian power‐law fluid are investigated. The thermal diffusivity is dependent on the shear‐rate and is not a constant. The flow in planar and radial thermal free jets is governed by the momentum, continuity and energy balance equations. In the stream‐function formulation,
Avnish Bhowan Magan, Rehana Naz
wiley   +1 more source

A Survey of Interlayer Interaction Models for Graphene and Other 2D Materials

Advanced Materials Interfaces, Volume 13, Issue 13, 7 July 2026.
Van der Waals interactions arising from electronic polarization at atomically close interfaces generate corrugated interlayer energy landscapes that govern normal and tangential tractions. This review presents an overview of quantum, atomistic, analytical, and continuum modeling approaches, highlighting their roles across length scales in capturing ...
Gourav Yadav, Shakti S. Gupta, Roger A. Sauer   +2 more
wiley   +1 more source

Diffusion Processes in the A-Model of Vector Admixture: Turbulent Prandtl Number

EPJ Web of Conferences, 2018
Using analytical approach of the field theoretic renormalization-group technique in two-loop approximation we model a fully developed turbulent system with vector characteristics driven by stochastic Navier-Stokes equation. The behaviour of the turbulent
Jurčišinová Eva, Jurčišin Marián, Remecky Richard   +2 more
doaj   +1 more source

Unsteady MHD Heat Transfer of a Casson–Williamson Ternary Hybrid Nanofluid Over a Biaxially Stretching/Shrinking Sheet With Cattaneo–Christov Heat Flux and Multi‐Mode Thermal Radiation

Engineering Reports, Volume 8, Issue 7, July 2026.
A numerical study of Casson–Williamson ternary hybrid nanofluid flow reveals that magnetic effects enhance transverse velocity while suppressing axial components, and increased thermal relaxation reduces heat transfer rates under multiple radiation models, highlighting improved control of thermal performance in advanced engineering and electronics ...
Khaled Matarneh, Yousra Nazneen, Muhammad Rooman, Zahir Shah, Meshal Shutaywi   +4 more
wiley   +1 more source

Organized Fluidized Bed Reactor Design for Methane Oxidative Coupling: Maximizing Efficiency and Selectivity Through Advanced Hydrodynamics

Engineering Reports, Volume 8, Issue 7, July 2026.
The developed organized fluidized bed reactor design provides a scalable and efficient solution for industrial methane oxidative coupling processes, enabling improved C2‐hydrocarbon selectivity and thermal management, with potential applications in sustainable hydrogen energy systems and chemical synthesis.
Dmitry Sladkovsky, Kirill Semikin, Irina Nizovtseva, Valentin Romanovski, Yana Khvashchevskaya, Vadim Popkov   +5 more
wiley   +1 more source

Mixing Behavior of Natural Gas and Hydrogen in a High‐Efficiency Vane (HEV) Static Mixer

Energy Science &Engineering, Volume 14, Issue 7, Page 3211-3225, July 2026.
Static mixers play a crucial role in the safe transport of hydrogen‐blended natural gas. Computational fluid dynamics (CFD) was employed to investigate the effects of structural parameters of the HEV static mixer on the mixing behavior and homogeneity of natural gas and hydrogen. The modeling approach was well validated against experimental data.
Xiang Zhou, Jun Zheng, Weiqing Xu, Dewen Kong, Yan Shi, Maolin Cai   +5 more
wiley   +1 more source

Thermo‐Hydrodynamic Processes of Microparticles in Fractures: A CFD–DEM Approach

International Journal for Numerical and Analytical Methods in Geomechanics, Volume 50, Issue 10, Page 4230-4246, July 2026.
ABSTRACT Controlling fracture permeability plays a critical role in subsurface energy applications, particularly in geothermal energy production and enhanced carbon sequestration, where regulating fluid flow is essential. The use of microcapsules has become a promising solution to enhance fracture permeability by providing a controlled sealing ...
Hoai Thanh Nguyen, Pania Newell
wiley   +1 more source

Viscous and Magnetic Boundary Layers at the Top of the Core in Geodynamo Models

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 7, July 2026.
Abstract We investigate the boundary layer at the top of the Earth's core, which acts as a filter between the interior of the core and its surface, where models built from geomagnetic data are derived. We rely on no‐slip convective geodynamo numerical simulations calculated for a low viscosity fluid, with Ekman numbers E=10−6 $E=1{0}^{-6}$ and E=10−7 ...
D. Jault, P. Personnettaz, N. Gillet, T. Lepage, N. Schaeffer   +4 more
wiley   +1 more source