Results 41 to 50 of about 17,833 (305)

Experimental investigation of non-uniform heating effect on flow boiling instabilities in a microchannel-based heat sink

open access: yes, 2011
Copyright @ 2011 ElsevierTwo-phase flow boiling in microchannels is one of the most promising cooling technologies for coping with high heat fluxes produced by the next generation of central processor units (CPUs).
Bogojevic, D   +20 more
core   +1 more source

Thermodynamic Pathways of Nonequilibrium Solidification in Wire‐Arc Additive Manufacturing Fe‐Based Multicomponent Alloy Structures

open access: yesAdvanced Engineering Materials, EarlyView.
Geometry‐driven thermal behavior in wire‐arc additive manufacturing (WAAM) influences microstructural evolution during nonequilibrium solidification of a chemically complex Fe–Cr–Nb–W–Mo–C nanocomposite system. By comparing different deposits configurations, distinct entropy–cooling rate correlations, segregation, and carbide evolution are revealed ...
Blanca Palacios   +5 more
wiley   +1 more source

Fluid flow and heat transfer of porous TPMS architected heat sinks in free convection environment

open access: yesCase Studies in Thermal Engineering, 2022
Heat dissipation in electronic devices is challenging due its limited size and cooling space constraint. Implementing Triply Periodic Minimal Surfaces (TPMS)-based cellular structures could enhance the thermal exchange mechanism due to their novel ...
Nada Baobaid   +3 more
doaj   +1 more source

Composite Heat Sink LED Cooling [PDF]

open access: yesProgress in Canadian Mechanical Engineering, 2018
Metal coating of 3D printed polymers is an attractive proposition for thermal dissipation of light emitting diodes, due to its high efficiency and markedly lower material costs than conventional aluminum heat sinks. Efficient thermal cooling of light emitting diodes is essential in maintaining electronic and optical performance. The thermal performance
Gibbons, Michael   +2 more
openaire   +3 more sources

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

open access: yesAdvanced 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   +3 more
wiley   +1 more source

Constructal Parallel-Flow and Counterflow Microchannel Heat Sinks with Bifurcations

open access: yes, 2015
Based on the Constructal Theory, parallel-flow and counterflow microchannels heat sinks with bifurcations are put forward to manage the temperature nonuniformity and further reduce the temperature of microchannel heat sinks bottom plates.
Xie, Gongnan   +5 more
core   +1 more source

Three dimensional features of convective heat transfer in droplet-based microchannel heat sinks [PDF]

open access: yes, 2015
Convective heat transfer in droplet-based microchannel heat sinks can be enhanced by the recirculating vortices due to the presence of interfaces. In rectangular microchannels, the three dimensional structures of the vortices and the ‘gutters’ (i.e., the
Yang, C   +8 more
core   +1 more source

High‐Temperature Nanoindentation of Metals: Assessing Thermal Drift, Frame Compliance, and Chemical Composition Effects on the Reported Mechanical Properties

open access: yesAdvanced Engineering Materials, EarlyView.
Do not let thermal drift and instrument artifacts deceive high‐temperature nanoindentation results. We compare classical Oliver–Pharr and automatic image recognition analyses across steels and a Ni alloy to quantify these effects. Accounting for artifacts reveals systematic softening with temperature, while Cr and Ni additions boost resistance ...
Velislava Yonkova   +2 more
wiley   +1 more source

Numerical simulations of interrupted and conventional microchannel heat sinks

open access: yes, 2008
We provide three-dimensional numerical simulations of conjugate heat transfer in conventional and the newly proposed interrupted microchannel heat sinks.
Song, Yanxi   +4 more
core   +1 more source

Sinking satellites and the heating of galaxy discs [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 1999
17 pages, 15 figures, (to MNRAS). Figs.
Velazquez, H., White, Simon D. M.
openaire   +2 more sources

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