Numerical study of transient conjugate heat transfer of a turbulent impinging jet

Yang, Yue-Tzu; Tsai, S.S.

doi:10.1016/j.ijheatmasstransfer.2006.08.022

Cited by 47 publications

(15 citation statements)

References 43 publications

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“…Yang and Tsai [40] High turbulence air jet impingement on a circular disk with low-Re k-ω turbulence model with Re = 16100 to 29600 and H/D = 4 to 10.…”

Section: Rans Computationsmentioning

confidence: 99%

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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“…Yang and Tsai [40] High turbulence air jet impingement on a circular disk with low-Re k-ω turbulence model with Re = 16100 to 29600 and H/D = 4 to 10.…”

Section: Rans Computationsmentioning

confidence: 99%

Flow and thermal characteristics of jet impingement: comprehensive review

Shukla¹,

Dewan²

2017

IJHT

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“…purpose of assessing the ability of numerical simulations to capture the phenomenon [14,15,9] and of gaining insight on the physical phenomenon itself [16,17]. A work by the authors of this paper collects, repeats and reviews many of these models from an engineering point of view [7].…”

Section: Introductionmentioning

confidence: 99%

Direct comparison of LES and experiment of a single-pulse impinging jet

Bovo

Davidson

2015

International Journal of Heat and Mass Transfer

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a b s t r a c tExperimental results are commonly used to validate numerical simulations. Often, it is challenging to accurately reproduce the experimental setups in the numerical environment, thereby leaving uncertainty in the validation process. An experiment on impinging jets was designed with boundary conditions well suited for implementation in the numerical environment. In this work, LES was implemented to specifically match the experiment of a single-pulse jet impinging on a surface oriented normally to the jet axis. The experiment was designed primarily to study the thermal effects on the impingement zone with high space-time resolution. The temperature evolution of the impingement target was measured via IR camera. The space-time resolved jet velocity-field was measured with PIV and was used as boundary condition for the simulation. The focus of the LES was to replicate the experiment as faithfully as possible in the virtual environment. LES was run multiple times to allow statistical evaluation of the results, as done in the experimental procedure. High levels of agreement were found between the LES and the experimental results, both from a qualitative and a quantitative point of view. This work could therefore be considered as a successful validation of the LES in the study of this type of flows.

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“…To address this aspect, Siba et al [10] constructed an experimental model with 12.7 mm thick stainless-steel plate and used inverse heat conduction technique to calculate both surface temperature and heat flux by feeding measured temperature at 0.76 mm below the top surface. With the objective of studying the conjugate heat transfer effect, Yang and Tsai [11] used low Reynolds k-ω turbulence model to predict the heat transfer coefficient for the flat plate model of Siba et al [10]. They predicted top (impingement) surface temperature variation by imposing different uniform heat flux values at the bottom surface.…”

Section: Introductionmentioning

confidence: 99%

Computational and Experimental Study of Conjugate Heat Transfer From a Flat Plate With Shower Head Impinging Jets

Panda

Sreekala

Prasad

2010

2010 14th International Heat Transfer Conference, Volume 5

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Computational and experimental conjugate heat transfer of flat circular disk is investigated with a constant heat flux imposed on its bottom surface and a shower head of air jets impinging on its top surface. The shower head consists of a central air jet surrounded by four neighboring perimeter jets. Measured temperature data at twelve locations within the plate are compared with the conjugate heat transfer result obtained at the same locations computationally by Shear Stress Transport (SST) κ-ω turbulence model. Measurement and simulation results are in good agreement with each other. The spacing to orifice diameter ratio (H/d = 1 to 6), jet Reynolds number (7115 to 10674) and plate thickness (2.5 mm, 10 mm and 20 mm) are varied. The computationally obtained flow structure describes the complex interaction of the wall jets. Heat transfer rate is found to be independent of thickness of the impingement plate. Local variation of heat transfer rate with varying H/d is significant but its effect on the area weighted average heat transfer rate is very small. Shower head jets provide uniform temperature distribution with higher heat transfer rate in comparison with the single jet.

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Numerical study of transient conjugate heat transfer of a turbulent impinging jet

Cited by 47 publications

References 43 publications

Flow and thermal characteristics of jet impingement: comprehensive review

Flow and thermal characteristics of jet impingement: comprehensive review

Direct comparison of LES and experiment of a single-pulse impinging jet

Computational and Experimental Study of Conjugate Heat Transfer From a Flat Plate With Shower Head Impinging Jets

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