Numerical analysis of heat transfer due to confined slot-jet impingement on a moving plate

Sharif, M. A. R.; Banerjee, Arindam

doi:10.1016/j.applthermaleng.2008.03.011

Cited by 97 publications

(64 citation statements)

References 26 publications

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“…These types of impinging jets are both commonly used, and literature reviews on the subject have been provided in [2,3,6]. The effects of confinement on impinging jet heat transfer have been considered in [22][23][24][25]. The importance of the subject is underlined by the several investigations performed on impingement on moving plates [25], obliquely flat surfaces [26], porous mediums [27], semicircular concave surfaces [28], jet arrays [29], and adopting foams or fins [30].…”

Section: Introductionmentioning

confidence: 99%

“…The effects of confinement on impinging jet heat transfer have been considered in [22][23][24][25]. The importance of the subject is underlined by the several investigations performed on impingement on moving plates [25], obliquely flat surfaces [26], porous mediums [27], semicircular concave surfaces [28], jet arrays [29], and adopting foams or fins [30]. Moreover, laminar [20,31] and turbulent [23,32,33] flow regimes can be considered.…”

Section: Introductionmentioning

confidence: 99%

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Numerical Study of Laminar Confined Impinging Slot Jets with Nanofluids

Lorenzo¹,

Manca²,

Nardini³

et al. 2012

Advances in Mechanical Engineering

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A solution to obtain efficient cooling systems is represented by the use of confined or unconfined impinging jets. Moreover, the possibility of improving the thermal performances of the working fluids can be taken into account and the introduction of nanoparticles in a base fluid can be considered. In this paper, a numerical investigation on confined impinging slot jet working with a mixture of water and Al 2 O 3 nanoparticles is described. The flow is laminar and a uniform temperature is applied on the target surface. The single-phase model approach has been adopted. Different geometric ratios, particle volume concentrations, and Reynolds numbers have been considered in order to study the behaviour of the system in terms of average and local Nusselt number, convective heat transfer coefficient and required pumping power profiles, temperature fields, and stream function contours.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Numerical Study of Laminar Confined Impinging Slot Jets with Nanofluids

Lorenzo¹,

Manca²,

Nardini³

et al. 2012

Advances in Mechanical Engineering

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“…They showed that the cross-flow effect can reduce the nominal Nu by as much as 60%. Further Sharif and Banerjee [35] numerically investigated heat transfer from a moving plate due to confined slot jet impingement. They specified 2% turbulence intensity at the jet exit and a length scale equal to 2B with constant pressure outlet condition to handle such complex flow situations due to plate movement.…”

Section: Rans Computationsmentioning

confidence: 99%

“… Sharif and Banerjee [35] specified 2% turbulence intensity at the jet exit and a length scale equal to 2B.  Cziesla et al [46] and Beaubert and Viazzo [51] considered periodic boundary along the width (equal to two slot widths).…”

Section: Computational Domain and Boundary Conditionsmentioning

confidence: 99%

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Flow and thermal characteristics of jet impingement: comprehensive review

Shukla¹,

Dewan²

2017

IJHT

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A comprehensive review on jet impingement heat transfer is presented to consider the state-of the art in this field. Among all the single-phase heat transfer arrangements possible, it has the maximum heat transfer rate. A number of arrangements are possible to represent a practical or physical situation, such as, jet impingement on a solid flat surface or surface fitted with different kinds of turbulent promoters, inclined plane surface and cylindrical convex/concave surface, etc. A significant number of papers dealing with experimental and computational studies on different physical and computational aspects of jet impinging flows are reviewed. Several parameters were found to influence the characteristics, such as, flow confinement, nozzle shape, jet to plate spacing and Reynolds number. An extremely small number of studies dealing with application based jet impingement heat transfer configurations (e.g., ribs fitted impingement plate, moving impingement plate, etc) experimentally and numerically have been reported in the literature. Various computational approaches, such as, RANS, LES, DNS and hybrid models, that are used to study the jet impingement heat transfer, with their complexities and boundary conditions, have been reviewed. It was observed that majority of RANS based turbulence models did not predict impinging flows accurately and its complexities except a few. Many authors have reported that LES is capable of predicting the flow field and heat transfer data within the accepted accuracy limits. DNS can be applied to simple geometry with low Reynolds number. Recently some authors have employed hybrid models, such as, PANS, DES, etc., and concluded that these models provide reasonably accurate results and were found to be computationally less expensive than LES and DNS.

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Thermal Performance Factor of Impinging Jet‐Angled Corrugated Solar Air Heaters

Raheem,

Siddique,

Waheed

et al. 2024

Energy Tech

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Solar energy is a clean and sustainable source of power generation. There are various industrial and domestic applications of Solar Air Heaters (SAHs), but their low thermal efficiency poses a challenge. To improve thermal efficiency, a novel‐angled corrugated jet‐impinging channel has been proposed for the absorbing plate of SAHs. A numerical study has been performed for four different arrangements of jets, i.e., single circular, single square, 2 × 2 square, and 3 × 3 square jet array with four channels, i.e., 30°, 45°, 60°, and 90° corrugated over the Reynolds number range of 1600–2700 for the jet to target plate range of 4.9–15. It is observed that multiple jets impinging increases the heat transfer significantly. The optimization has been performed by instigating the parametric study. Flow and thermal profiles are studied. The 45° corrugated target plate with 3 × 3 multiple jet impingement, 4.9 jet‐to‐target plate distance, and 2700 Reynolds number is chosen to have the best thermal efficiency. A Thermal Performance Factor of around 8 was achieved as compared to the base case.

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Numerical analysis of heat transfer due to confined slot-jet impingement on a moving plate

Cited by 97 publications

References 26 publications

Numerical Study of Laminar Confined Impinging Slot Jets with Nanofluids

Numerical Study of Laminar Confined Impinging Slot Jets with Nanofluids

Flow and thermal characteristics of jet impingement: comprehensive review

Thermal Performance Factor of Impinging Jet‐Angled Corrugated Solar Air Heaters

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