Results 81 to 90 of about 9,644,141 (271)

Analysis of Double‐Diffusive Transport and Entropy Generation in a Wavy Cylindrical Enclosure With Inner Heated Core: Effects of MHD and Radiation on Casson Cu─H2O Nanofluid

open access: yesEnergy Science &Engineering, EarlyView.
ABSTRACT This study investigates double‐diffusive transport and entropy generation in a wavy cylindrical enclosure containing Cu─H2O Casson nanofluid under magnetic field and thermal radiation effects. The governing equations were solved numerically using the finite element method with Galerkin formulation.
Mohammed Azeez Alomari   +6 more
wiley   +1 more source

Solar Energy Storage Optimization Using Fractional Derivative Simulations of Maxwell Hybrid Nanofluid Flow: Entropy Generation Analysis

open access: yesEnergy Science &Engineering, EarlyView.
ABSTRACT This attempt examines the heat transfer enhancement from unsteady bioconvective Maxwell nanofluid flow under the incidence of solar radiation influenced by viscous dissipation and chemical reaction through a porous medium. The nanofluid contains silver and titanium alloy hybrid nanoparticles with gyrotactic micro‐organisms in ethylene glycol ...
Bhupendra K. Sharma   +4 more
wiley   +1 more source

Comparison of analytical and finite element solutions for monitoring the self‐generated temperature in the fatigue test of novel continuous glass fiber‐reinforced Elium thermoplastic composites

open access: yesPolymer Composites, EarlyView.
Illustration of the three methods of investigating temperature increases during the fatigue test of continuous glass fiber reinforced Elium thermoplastic composite materials. Abstract There is an increasing trend toward thermoplastic matrix composites in the automotive industry, and the most significant damage type is owing to fatigue. A set of fatigue
Mete Kayihan, Mustafa Bakkal
wiley   +1 more source

Kapitza Length at Solid–Liquid Interface: From Nanoscale to Microscale

open access: yesSmall Science, EarlyView.
This study addresses the critical challenge of understanding solid–liquid interfacial heat transfer from nanoscale to microscale, focusing on how liquid film thickness affects Kapitza length under the constant overall temperature difference or heat flux.
Wentao Chen, Gyoko Nagayama
wiley   +1 more source

Numerical investigation of steady state, laminar, natural convection of Bingham fluids in a trapezoidal enclosure heated from the bottom and cooled from the sides

open access: yesInternational Journal of Thermofluids, 2023
Laminar, steady-state, natural convection of Bingham fluids in trapezoidal enclosures with a heated bottom wall, cooled inclined sidewalls and an adiabatic top wall has been studied based on numerical simulations for a range of values of nominal Bingham ...
S. Malkeson   +2 more
doaj  

Experimental Study on Horizontal Cylinders with Triangular Fins under Natural Convection

open access: yesEnergies, 2018
In this study, thermal resistances of horizontal cylinders with triangular fins were measured in regard to fin numbers, fins heights, and temperature differences.
Gu-Won Lee   +2 more
doaj   +1 more source

Electric Nusselt number characterization of electroconvection in nematic liquid crystals [PDF]

open access: yesarXiv, 1999
We develop a characterization method of electroconvection structures in a planar nematic liquid crystal layer by a study of the electric current transport. Because the applied potential difference has a sinusoidal time dependence, we define two electric Nusselt numbers corresponding to the in-phase and out-of-phase components of the current.
arxiv  

Simulation and Modeling of Convective Mixing of Carbon Dioxide in Geological Formations

open access: yesGeophysical Research Letters, Volume 52, Issue 7, 16 April 2025.
Abstract We perform large‐scale numerical simulations of convection in 3D porous media at Rayleigh‐Darcy numbers up to Ra=8×104 $Ra=8\times 1{0}^{4}$. To investigate the convective mixing of carbon dioxide (CO2 ${\text{CO}}_{2}$) in geological formations, we consider a semi‐infinite domain, where the CO2 ${\text{CO}}_{2}$ concentration is constant at ...
Marco De Paoli   +4 more
wiley   +1 more source

Numerical studies of an eccentric tube-in-tube helically coiled heat exchanger for IHEP-ADS helium purification system [PDF]

open access: yesarXiv, 2014
The tube-in-tube helically coiled (TTHC) heat exchanger is preferred in the purifier of IHEP-ADS helium purification system. The position of an internal tube is usually eccentric in a TTHC heat exchanger in practice, while most TTHC heat exchangers in the literature studied are concentric. In this paper, TTHC heat exchangers with different eccentricity
arxiv  

Mixed Convection and Permeability Effects on Magnetohydrodynamic Williamson Fluid Flow Over an Inclined Stretchy Surface With Radiation Influence: Analytical Investigation

open access: yesEngineering Reports, Volume 7, Issue 4, April 2025.
ABSTRACT The study introduces a computational method that combines Legendre polynomials with Gauss–Lobatto points to solve nonlinear coupled differential equations, focusing on the Williamson fluid model under the influence of mixed convection and permeability with mixed boundary conditions.
R. A. Oderinu   +4 more
wiley   +1 more source

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