Results 211 to 220 of about 22,521 (245)

Multiple jet impingement cooling

Journal of Thermophysics and Heat Transfer, 1993
Experiments were performed to study the effect of nozzle rotation, flow rate, degrees of subcooling, number of jets, and velocity on the heat flux in jet impingement cooling using deionized distilled water. The heat flux is a strong function of the flow rate and degree of subcooling, attaining a maximum value of the order of 600 W/cm at the highest ...
M. R. Pais, L. C. Chow, E. T. Mahefkey
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Effects of impingement gap and hole arrangement on overall cooling effectiveness for impingement/effusion cooling

International Journal of Heat and Mass Transfer, 2020
Abstract The effects of geometrical parameters on overall cooling effectiveness were experimentally investigated on the flat plate with impingement/effusion cooling. Geometrical parameters investigated included two relative positions of impingement and effusion holes (staggered arrangement and overlapped arrangement) and three impingement gap ...
Gang Xie, Cun-liang Liu, Lin Ye, Rui Wang, Jiajia Niu, Yingni Zhai   +5 more
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Impingement Cooling of Electronics

Journal of Heat Transfer, 1992
Experiments were conducted to determine the performance of a system of low-velocity air jets used to cool a simulated electronics package. The test model consisted of a uniform array of rectangular elements mounted to a circuit board. Each element was cooled by a cluster of four jets, and the spent fluid was vented at one end of the channel formed ...
B. R. Hollworth, M. Durbin
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Spray Cooling Droplet Impingement Model

10th AIAA/ASME Joint Thermophysics and Heat Transfer Conference, 2010
Spray Cooling is one of the leading techniques proposed for rejection of high heat flux levels necessary in future aircraft and spacecraft electronics and weapons packages. Experimental research and computational CFD require significant amounts of time to setup and execute to completion.
Paul Kreitzer, John Kuhlman
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Submerged liquid jet impingement cooling

2011 IEEE 13th Electronics Packaging Technology Conference, 2011
In this paper, submerged liquid jet array impingement is proposed as a solution for the thermal management of the high performance electronics. Experiments were done using a submerged jet array of 285 nozzles of 0.5 mm diameter spaced 5.5 mm apart, machined on a 5 mm thick nozzle plate, with an impingement height of 3 mm.
Z. Y. Wang, T. N. Wong, F. Duan, K. C. Toh, K. F. Choo, S. P. Tan, C. V. Loh, S. C. Yeo   +7 more
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Numerical Simulation of Impinging Jet Cooling

2010 14th International Heat Transfer Conference, Volume 5, 2010
This paper presents a technique for heat transfer prediction of impinging jet cooling of internal combustion engine piston based on numerical simulation in ANSYS CFX. This technique implies the simulation of the hydrodynamics of the interaction between cooling oil jet and moving piston.
Yury V. Mikhaylov, Leonid L. Myagkov, Nikolay S. Malastowski   +2 more
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Jet Impingement Cooling in VSCF Generators

SAE Technical Paper Series, 1995
<div class="htmlview paragraph">A cooling technique is devised which will maintain the electronics within their thermal operating limits when the power output of currently used VSCFs is augmented to 65 kVA from 40 kVA. This study suggests that the use of jet impingement cooling selectively applied in regions of high heat flux will support the ...
Martin Pais, Louis C. Chow, Jim Knee, Victor Bonneau, John E. Leland, Jerry Beam   +5 more
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Electronic Cooling Using Synthetic Jet Impingement

Journal of Heat Transfer, 2006
The efficiency and mechanisms of cooling a constant heat flux surface by impinging synthetic jets were investigated experimentally and compared to cooling with continuous jets. Effects of jet formation frequency and Reynolds number at different nozzle-to-surface distances (H∕d) were investigated.
Anna Pavlova, Michael Amitay
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Impingement Cooling by Multiple Asymmetric Orifice Jets

Journal of Heat Transfer, 2022
Abstract This study presents impingement cooling from a flat plate by multiple asymmetric jets. Such jets are discharged through blunt-edge inline orifice holes with a thickness-to-diameter ratio of t/Dj = 0.5 and a jet-to-jet spacing of T/Dj = 4.0, at the Reynolds number of 20,000.
C. Y. Zhang, Y. Y. Liu, T. I. Bhaiyat, S. W. Schekman, T. J. Lu, T. Kim   +5 more
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Impinging jet cooling on concave surfaces

AIChE Journal, 2004
AbstractThe numerical modeling of jet impingement cooling onto a semicircular concave surface is reported. The performance of two‐equation turbulence models (such as the k–ε model) is evaluated vs. the Reynolds stress model proposed. The Reynolds‐averaged momentum and energy equations are solved together with equations for the turbulence models, using ...
N. Souris, H. Liakos, M. Founti
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