Large-eddy simulation of flow and heat transfer in an impinging slot jet

Cziesla, T.; Biswas, Gautam; Chattopadhyay, Himadri; Mitra, N. K.

doi:10.1016/s0142-727x(01)00105-9

Cited by 108 publications

(49 citation statements)

References 37 publications

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“…Beaubert and Viazzo [51] suggested that the length of the computational domain in the horizontal direction must be large enough to capture two big recirculations on both sides of jet and showed that x/B = +40 is sufficient. Similar to Cziesla et al [46], they also considered the periodic boundary along the width of the domain and suggested that this dimension should be large enough to capture the biggest structures of the flow in order to justify the periodic conditions. Chattopadhyay and Saha [52] investigated the flow field and heat transfer in a rectangular slot jet, impinging on moving surface and the velocity of the impinging plate was varied two times the jet exit velocity.…”

Section: Les and Boundary Conditionsmentioning

confidence: 94%

“…Many authors, such as, Cziesla et al [46], Uddin et al [47], Dutta et al [48], Dairay et al [49] and Dutta et al [50] observed that LES can predict the flow field and heat transfer data within the accepted accuracy limits. Development of LES wall functions for computation is quite important for impinging flows [1].…”

Section: Les and Boundary Conditionsmentioning

confidence: 99%

“…Development of LES wall functions for computation is quite important for impinging flows [1]. Cziesla et al [46] considered periodic boundary condition along the width (equal to two slot widths), height of 8B -12B (spacing between nozzle to plate) and length 10B of the domain. Beaubert and Viazzo [51] suggested that the length of the computational domain in the horizontal direction must be large enough to capture two big recirculations on both sides of jet and showed that x/B = +40 is sufficient.…”

Section: Les and Boundary Conditionsmentioning

confidence: 99%

“…They reported that similarity model performed better than the dynamic model at sufficient resolution. Cziesla et al [46] Flow field and heat transfer for an impinging jet emanating from a rectangular slot nozzle at Re = 2000 -10000 with dynamic SGS model.…”

Section: Author(s) Configuration and Important Parameters Studied Summentioning

confidence: 99%

“… Cziesla et al [46] and Beaubert and Viazzo [51] considered periodic boundary along the width (equal to two slot widths).  Beaubert and Viazzo [51] suggested that the length of the computational domain in the horizontal direction must be large enough to capture two big recirculation regions on both sides of jet and showed that H/B = 40 is sufficient for LES.…”

Section: Computational Domain and Boundary Conditionsmentioning

confidence: 99%

See 4 more Smart Citations

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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Section: Les and Boundary Conditionsmentioning

confidence: 94%

Section: Les and Boundary Conditionsmentioning

confidence: 99%

Section: Les and Boundary Conditionsmentioning

confidence: 99%

Section: Author(s) Configuration and Important Parameters Studied Summentioning

confidence: 99%

Section: Computational Domain and Boundary Conditionsmentioning

confidence: 99%

See 3 more Smart Citations

Flow and thermal characteristics of jet impingement: comprehensive review

Shukla¹,

Dewan²

2017

IJHT

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Jet impingement onto a tapered hole: Influence of jet velocity and hole wall velocities on heat transfer and skin friction

Shuja

Yilbaş

Khan

2008

Numerical Methods in Fluids

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SUMMARYJet impingement onto a hole with elevated wall temperature can be associated with the high-temperature thermal drilling, where the gas jet is used for shielding the hole wall from the high-temperature oxidation reactions as observed in the case of laser drilling. In laser processing, the molten flow from the hole wall occurs; and in the model study, the hole wall velocity resembling the molten flow should be accounted for. In the present study, gas jet impingement onto tapered hole with elevated temperature is considered and the heat transfer rates as well as skin friction at the hole wall surface are predicted. The velocity of molten flow from the hole wall determined from the previous study is adopted in the simulations and the effect of hole wall velocity on the heat transfer rates and skin friction is also examined. It is found that the Nusselt number and skin friction at the hole wall in the regions of hole inlet and exit attain high values. The influence of hole wall velocity on the Nusselt number and skin friction is found not to be very significant.

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Numerical Simulation of Impinging Jets

Wilke

Sesterhenn

2014

High Performance Computing in Science and Engineering ‘14

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Large-eddy simulation of flow and heat transfer in an impinging slot jet

Cited by 108 publications

References 37 publications

Flow and thermal characteristics of jet impingement: comprehensive review

Flow and thermal characteristics of jet impingement: comprehensive review

Jet impingement onto a tapered hole: Influence of jet velocity and hole wall velocities on heat transfer and skin friction

Numerical Simulation of Impinging Jets

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