Journal ArticleDOI
Performance Characterization of Laminar Flow in Multiple Microjet Impingement Heat Sinks
TLDR
In this paper, a three-dimensional numerical analysis was performed on the steady incompressible laminar flow and the conjugate heat transfer in multiple microjet impingement heat sinks.Abstract:
The present study investigates the thermal performance of a silicon-based multiple microjet impingement heat sink for the thermal management of electronics. A three-dimensional numerical analysis was performed on the steady incompressible laminar flow and the conjugate heat transfer in multiple microjet impingement heat sinks. One side of the silicon substrate receives a moderate heat flux of 100 W/cm2; the other side contains the designed jet impingement system. The jet plate consists of many jet holes, so the computational domain was simplified by using symmetric boundary conditions. The effects of the design parameters such as the jet diameter, jet pitch, and standoff (that is, the distance of the nozzle exit to the heated surface) were analyzed under laminar flow conditions. Because of the low pumping power available in the micropumping system, the analysis was carried out at a low Reynolds number. The crossflow effects of the spent flow and the inline jet sweeping were investigated to determine the ...read more
Citations
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Journal ArticleDOI
Thermal performance analysis of a hybrid micro-channel, -pillar and -jet impingement heat sink
TL;DR: In this article, the authors proposed a novel hybrid design of a heat sink based on micro-channel, -pillar and -jet impingement, and a three-dimensional numerical model is constructed to investigate the thermal performance of the proposed design for steady state, incompressible and laminar flow.
Journal ArticleDOI
Thermal Performance Analysis and Optimization of Microjet Cooling of High-Power Light-Emitting Diodes
TL;DR: In this article, the thermal and hydraulic performance of the microjet array cooling system for thermal management of a high-power light-emitting diode array was investigated through a finite volume solver.
Journal ArticleDOI
Overall numerical simulation and experimental study of a hybrid oblique-rib and submerged jet impingement/microchannel heat sink
TL;DR: In this article, two submerged jet impingement/microchannel heat sink (JIMHS) models were proposed, i.e., straight-rib and oblique-rib JIMHS, and the heat transfer and flow characteristics of the two models were investigated by overall numerical simulation and experiment.
Journal ArticleDOI
Comparative Performance Analysis of Microjet Impingement Cooling Models with Different Spent-Flow Schemes
TL;DR: In this article, the authors defined the surface area of the substrate base, m 2 d = diameter of the nozzle, m H = height of the channel, m h = heat transfer coefficient, W · m−2 · K−1 k = thermal conductivity,W · m − 1 · K − 1 lx, ly, lz = length, width, and height of silicon substrate, respectively, m N = number of observation for calculating mean value n = Number of jets P = pumping power, W p, Δp = pressure and pressure drop, respectively
References
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Book
Fundamentals of Heat and Mass Transfer
TL;DR: This paper introduced the physical effects underlying heat and mass transfer phenomena and developed methodologies for solving a variety of real-world problems, such as energy minimization, mass transfer, and energy maximization.
Journal ArticleDOI
High-performance heat sinking for VLSI
TL;DR: In this paper, a water-cooled integral heat sink for silicon integrated circuits has been designed and tested at a power density of 790 W/cm2, with a maximum substrate temperature rise of 71°C above the input water temperature.
Journal ArticleDOI
Experimental and numerical study of pressure drop and heat transfer in a single-phase micro-channel heat sink
Weilin Qu,Issam Mudawar +1 more
TL;DR: In this paper, the authors investigated the pressure drop and heat transfer characteristics of a single-phase micro-channel heat sink, which consisted of an array of rectangular micro-channels 231 lm wide and 713 lm deep.
Book ChapterDOI
Jet Impingement Heat Transfer: Physics, Correlations, and Numerical Modeling
Neil Zuckerman,Noam Lior +1 more
TL;DR: In this article, a review of recent impinging jet research publications identified a series of engineering research tasks that are important for improving the design and resulting performance of impinging jets: (1) clearly resolve the physical mechanisms by which multiple peaks occur in the transfer coefficient profiles, and clarify which mechanism(s) dominate in various geometries and Reynolds number regimes.
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