Cooling of a heated flat plate by an obliquely impinging slot jet

Eren, Haydar; Çelik, Nevin

doi:10.1016/j.icheatmasstransfer.2005.10.009

Cited by 31 publications

(12 citation statements)

References 8 publications

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“…Hence, the analysis is performed by the same claim. It is a clear fact that the Nusselt number increases as per Reynolds number in agreement with [25]. The analytical solution can be worked out for laminar jets.…”

Section: Nusselt Number Distribution -Effect Of Variation In Re and H/dmentioning

confidence: 57%

“…The target surface also directs and controls enhancement of heat transfer [23,24]. To make cooling systems squeezed, the cooling jets can be inclined [25]. The cooling effectiveness is a function of the Reynolds number, characteristic length of plate to be cooled, point of jet impingement, and the oblique angle of the inclination of the jet.…”

Section: Jet Impingement Reviewmentioning

confidence: 99%

“…However, for a 30 and 15 degree inclination, it drastically increases to a highest of [25][26][27][28][29][30]. The physics of the flow can tend towards a geometrical intersection point of the inclined jet axis to the target plate (X 0 ).…”

Section: Position Of Maximum Nusselt Number -Inclination Wisementioning

confidence: 99%

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Cold Zone Exploration Using Position of Maximum Nusselt Number for Inclined Air Jet Cooling

Ingole

Sundaram

2017

Archive of Mechanical Engineering

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Inclined jet air cooling can be effectively used for cooling of electronics or other such applications. The non-confined air jet is impinged and experimentally investigated on the hot target surface to be cooled, which is placed horizontally. Analysis and evaluations are made by introduction of a jet on the leading edge and investigated for downhill side cooling to identify cold spots. The jet Reynolds number in the range of 2000 ≤ Re ≤ 20 000 is examined with a circular jet for inclination (Θ) of 15 < Θ < 75 degree. Also, the consequence of a jet to target distance (H) is explored in the range 0:5 ≤ H/D ≤ 6.8. For 45 degree jet impingement, the maximum Nusselt number is widely spread. Location of maximum Nusselt number is studied, which indicates cold spots identification. At a higher angle ratio, the angle is the dominating parameter compared to the Reynolds Number. Whereas at a lower angle ratio, the inclined jet with a higher Reynolds number is giving the cooling point away from leading edge. It is observed that for a particular angle of incident location of maximum Nusselt Number, measured from leading edge of target, is ahead than that of stagnation point in stated conditions.

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Section: Nusselt Number Distribution -Effect Of Variation In Re and H/dmentioning

confidence: 57%

Section: Jet Impingement Reviewmentioning

confidence: 99%

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Cold Zone Exploration Using Position of Maximum Nusselt Number for Inclined Air Jet Cooling

Ingole

Sundaram

2017

Archive of Mechanical Engineering

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“…Lee et al [2] have examined the effects of nozzle diameter on impinging jet heat transfer and fluid flow. Eren and Celik [3] investigated the heat transfer characteristic of a heated flat plate by an obliquely impinging air jet. Additionally, Agostini et al [4] illustrated the state of art of the high heat flux cooling technologies.…”

Section: Literature Reviewmentioning

confidence: 99%

Experimental Investigations on Influences of Nozzle Size and Jet Reynolds Number on Cooling Characteristics of Impinging Water Jets

Kund¹

2017

IJRASET

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The present study involves the experimental investigations of the heat transfer characteristics of axisymmetric water jet impingement on a heated plate. Various parameters affecting the thermal performance of axisymmetric water jet are identified and their effects on heat transfer behavior are also studied. The key parameters considered are jet Reynolds number (800-3200) and nozzle diameter (3-6 mm). In addition, all the investigations here are restricted to a constant heat flux condition. Results indicate that the water jet performance can be optimized with respect to these influencing parameters. However, with the present experimental conditions the nozzle diameter of 5 mm together with the jet Reynolds number of 2400 gives moderate heat transfer behavior and is the optimum one.

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“…Experimental [5] and numerical [6] studies showed that the location of the maximum heat transfer under the same conditions of Reynolds number and nozzle-toplate distance was mainly determined by the angle of inclination. When the angle between center line of the jet nozzle and the plate is oblique, the maximum heat transfer point shifts towards the uphill side of the plate movement from the impingement point.…”

Section: Introductionmentioning

confidence: 96%

Large eddy simulation of flow characteristics in an unconfined slot impinging jet with various nozzle-to-plate distances

Yoon

Chung

2011

J Mech Sci Technol

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Cooling of a heated flat plate by an obliquely impinging slot jet

Cited by 31 publications

References 8 publications

Cold Zone Exploration Using Position of Maximum Nusselt Number for Inclined Air Jet Cooling

Cold Zone Exploration Using Position of Maximum Nusselt Number for Inclined Air Jet Cooling

Experimental Investigations on Influences of Nozzle Size and Jet Reynolds Number on Cooling Characteristics of Impinging Water Jets

Large eddy simulation of flow characteristics in an unconfined slot impinging jet with various nozzle-to-plate distances

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