Jet Impingement onto a Limited-Area Heated Plate: Conical Nozzle Considerations

2005 ◽  
Vol 12 (4) ◽  
pp. 301-313
Author(s):  
S. Z. Shuja ◽  
B. S. Yilbas ◽  
M. O. Budair
Keyword(s):  
Jet Impingement ◽  
Limited Area ◽  
Heated Plate ◽  
Conical Nozzle

Utilizing jet impingement on protrusion/dimple heated plate to improve the performance of double pass solar heat collector

2021 ◽  
Author(s):  
Mohammad Salman ◽  
Ranchan Chauhan ◽  
Ganesh kumar Poongavanam ◽  
Myeong Hyun Park ◽  
Sung Chul Kim
Keyword(s):  
Jet Impingement ◽  
Heated Plate ◽  
Double Pass ◽  
Solar Heat ◽  
Heat Collector

Numerical Investigation of Impingement Heat Transfer Enhancement on a Flat Plate with an Attached Porous Medium

2011 ◽  
Vol 312-315 ◽  
pp. 477-482 ◽  
Author(s):  
Pey Shey Wu ◽  
Yi Wen Lo ◽  
Fong Chia Cheng
Keyword(s):  
Heat Transfer ◽  
Porous Medium ◽  
Flat Plate ◽  
Numerical Models ◽  
Thick Layer ◽  
Jet Impingement ◽  
Heat Transfer Process ◽  
Heated Plate ◽  
Impingement Heat Transfer ◽  
Hole Geometry

The enhancement of impingement heat transfer on a flat plate covered with a thick layer of porous medium with or without a center hole was numerically investigated. The renormalization group turbulence model is selected for the fluid region while Forchheimer extended Darcy’s model is used for porous region. The numerical models were justified by comparisons with available experimental data. Computational results show that an attached porous medium with a center hole can effectively enhance jet impingement heat transfer while an attached thick porous layer without a center hole has detrimental effect. The physics of these results are supported and well explained by the detailed flow patterns. The most influential parameters in this heat transfer process include the jet Reynolds number and the center hole geometry (hole depth and jet-to-hole diameter ratio). A good hole geometry should well trap the jet and direct the coolant along the heated plate.

Parametric analysis of a round jet impingement on a heated plate

2016 ◽  
Vol 57 ◽  
pp. 11-23 ◽  
Author(s):  
Rim Ben Kalifa ◽  
Sabra Habli ◽  
Nejla Mahjoub Saïd ◽  
Hervé Bournot ◽  
Georges Le Palec
Keyword(s):  
Parametric Analysis ◽  
Jet Impingement ◽  
Heated Plate ◽  
Round Jet

WETTING FRONT STUDIES ON HEATED PLATE WITH ORTHOGONAL WATER JET IMPINGEMENT

2020 ◽  
Vol 27 (6) ◽  
pp. 577-593
Author(s):  
Minhaj Hashim ◽  
N.N. Viswanathan ◽  
Arunkumar Sridharan
Keyword(s):  
Jet Impingement ◽  
Water Jet ◽  
Heated Plate ◽  
Wetting Front

Jet impingement on cylindrical cavity: Conical nozzle considerations

2007 ◽  
Vol 23 (7) ◽  
pp. 1106-1118 ◽  
Author(s):  
S.Z. Shuja ◽  
B.S. Yilbas ◽  
M.O. Budair
Keyword(s):  
Cylindrical Cavity ◽  
Jet Impingement ◽  
Conical Nozzle

SiO2 nanofluid planar jet impingement cooling on a convex heated plate

2016 ◽  
Vol 52 (12) ◽  
pp. 2735-2746 ◽  
Author(s):  
Neda Asghari Lafmajani ◽  
Mahsa Ebrahimi Bidhendi ◽  
Mehdi Ashjaee
Keyword(s):  
Jet Impingement ◽  
Heated Plate ◽  
Impingement Cooling ◽  
Planar Jet

scholarly journals Heat Transfer Enhancement from a Heated Plate with Hemispherical Convex Dimples by Forced Convection Along with a Cross Flow Jet Impingement

2020 ◽  
Vol 25 (1) ◽  
pp. 127-141
Author(s):  
P. Patro ◽  
S. Garnayak
Keyword(s):  
Heat Transfer ◽  
Plane Surface ◽  
Heated Surface ◽  
Rectangular Channel ◽  
Three Dimensional ◽  
Cross Flow ◽  
Jet Impingement ◽  
Axial Direction ◽  
Bottom Plate ◽  
Heated Plate

AbstractIn the present study, heat transfer from a small three dimensional rectangular channel due to turbulent jet impinging from a nozzle normal to the main flow at the inlet has been investigated. Hemispherical convex dimples are attached to the bottom plate from where heat transfer calculations are to be performed. Numerical simulations were performed using the finite volume method with SST k– ω turbulence model. The duct and nozzle Reynolds number are varied in the range of 10000 ≤ ReD ≤ 50000 and 6000 ≤ Red ≤ 12000, respectively. Different nozzle positions (X/D = 10.57, 12.88, 15.19) along the axial direction of the rectangular duct have been considered. It has been found that higher heat transfer is observed at X/D = 10.57 as compared to the other positions. The heat transfer enhancements with and without cross-flow effects have also been compared. It has been shown that the heat transfer rate with cross-flow is found to be much higher than that without cross-flow. Also, the effect of dimples on the heated surface on heat transfer was investigated. The heat transfer is found to be greater in the presence of a dimpled surface than a plane surface.

Mixed convection jet impingement cooling of a moving plate

2019 ◽  
Vol 13 (3) ◽  
pp. 5528-5541
Author(s):  
N. H. Saeid ◽  
B. S. Busahmin ◽  
A. A. Khalid
Keyword(s):  
Heat Transfer ◽  
Reynolds Number ◽  
Mixed Convection ◽  
Convection Heat Transfer ◽  
Jet Impingement ◽  
Jet Flow ◽  
Heated Plate ◽  
Moving Plate ◽  
Plate Velocity ◽  
Opposing Effects

The mixed convection heat transfer details of a jet impinging targeted a moving heated plate are studied numerically under steady laminar flow conditions. The governing parameters for the present problem are: Reynolds number (Re), Grashof number (Gr), the velocity of the heated plate (U), jet width and distance from the heated plate. The results are presented to show the fluid and heat flow structure at different conditions with fixed width of the jet and fixed distance from the heated plate and different other parameters. It is observed that the bouyancy effects are more obvious at low values of Reynolds number and plate velocity and the forced convection is dominating at high values of Re and U.  At low values of the plate velocity (U/V < 0.5 with Re = 200 and Gr = 1×104) it is observed that the heat transfer is reduced due to the opposing effects of the jet flow and the flow induced by the plate on one side of the plate. However the increase of the plate velocity more than (U/V > 0.5 with Re = 200 and Gr = 1×104) the heat transfer is increased due to the combined effect of the jet flow and the stronger flow induced by the movement of the heated plate.

Numerical Investigation Of Three Dimensional Laminar Jet Impingement On Heated Plate Surface

2016 ◽  
pp. 29
Author(s):  
محمد عبدالكريم الرواف ◽  
عادل حنون عيال ◽  
جلال محمد جليل
Keyword(s):  
Numerical Investigation ◽  
Three Dimensional ◽  
Jet Impingement ◽  
Heated Plate ◽  
Plate Surface ◽  
Laminar Jet
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