Results 41 to 50 of about 299,023 (257)

Thermal Convection of Nanoliquid in a Double-Connected Chamber

open access: yesNanomaterials, 2020
Thermogravitational convective thermal transmission, inside a square differentially-heated chamber with a nanoliquid, has been examined in the presence of internal adiabatic or a thermally-conducting solid body.
Ioan Pop   +2 more
doaj   +1 more source

Influence Analysis of Convective Heat Transfer of Circular Tubes and Flat Plates in a Polar Environment

open access: yesFrontiers in Energy Research, 2022
Electric heating serves as a major cold-proof measure because engineering equipment often loses efficacy in harsh weather conditions in a polar environment.
Yu Dongwei   +7 more
doaj   +1 more source

Convective Heat Transfer in Porous Materials [PDF]

open access: yesarXiv, 2023
Thermal convection stands out as an exceptionally efficient thermal transport mechanism, distinctly separate from conduction and radiation. Yet, the inherently elusive nature of fluid motion poses challenges in accurately controlling convective heat flow.
arxiv  

Rayleigh-Bénard thermal convection perturbed by a horizontal heat flux [PDF]

open access: yesarXiv, 2021
In Rayleigh-B\'enard convection, it has been found that the amount of heat passing through the fluid has a power law dependence on the imposed temperature difference. Modifying this dependence, either enhancing or reducing the heat transfer capability of fluids, is important in many scientific and practical applications. Here, we present a simple means
arxiv  

Lattice Boltzmann simulations of three-dimensional thermal convective flows at high Rayleigh number [PDF]

open access: yesInternational Journal of Heat and Mass Transfer 2019, 140, 359-370, 2019
We present numerical simulations of three-dimensional thermal convective flows in a cubic cell at high Rayleigh number using thermal lattice Boltzmann (LB) method. The thermal LB model is based on double distribution function approach, which consists of a D3Q19 model for the Navier-Stokes equations to simulate fluid flows and a D3Q7 model for the ...
arxiv   +1 more source

Transient free convection in an inclined square porous cavity filled with a nanofluid using LTNE and Buongiorno’s models

open access: yesMATEC Web of Conferences, 2018
The combined effect of Brownian diffusion, thermophoresis and cavity inclination angle on natural convective heat transfer in an inclined porous enclosure has been studied numerically. Fluid containing nanoparticles of low concentration circulates inside
Sheremet Mikhail, Pop Ioan
doaj   +1 more source

Simulation of Inhomogeneous Refractive Index Fields Induced by Hot Tailored Forming Components

open access: yesAdvanced Engineering Materials, EarlyView.
This article presents a simulation model for simulating inhomogeneous refractive index fields (IRIF) in hot‐forged components, accounting for thermal influences and complex geometries. Through this simulation, a priori knowledge about the propagation of the IRIF can be obtained, allowing for the positioning of the component or an optical measurement ...
Pascal Kern   +3 more
wiley   +1 more source

Impact of Iron Contamination on Liquid Properties and Microstructural Evolution in AlSi20

open access: yesAdvanced Engineering Materials, EarlyView.
Recycled aluminum is much more energy conservative and sustainable than primary aluminum. However, the iron contamination in secondary aluminum is vastly responsible for the degradation of the material properties. Herein, it is aimed to evaluate the influence of iron contamination in hypereutectic Al–Si alloy through thermodynamic as well as ...
Layla Shams Tisha   +2 more
wiley   +1 more source

Non‐Destructive and Mechanical Characterization of the Bond Quality of Co‐Extruded Titanium‐Aluminum Profiles

open access: yesAdvanced Engineering Materials, EarlyView.
This study investigates the bond quality of co‐extruded aluminum–titanium hybrid profiles, focusing on the lateral angular co‐extrusion (LACE) process. It examines how heat treatments (HT) affect intermetallic phase formation, bond strength, and material properties.
Norman Mohnfeld   +9 more
wiley   +1 more source

Influence of Convection Heat Transfer on Circular Tube Structure of Polar Marine Engineering Equipment

open access: yesShanghai Jiaotong Daxue xuebao, 2023
Electric heat tracing is often used for cold protection in polar ocean engineering equipment. Heat balance is the key problem of convective heat transfer. In this paper, the circular tube structure is taken as the research object.
CAO Taichun, WU Gang, KONG Xiangyi, YU Dongwei, WU Lin, ZHANG Dayong
doaj   +1 more source

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