Performance analysis of different turbulence models in impinging jet cooling

Pawar, Shashikant; Patel, Devendra Kumar

doi:10.1142/s0129183120500515

Cited by 2 publications

(1 citation statement)

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“…Furthermore, although the flow field and temperature distribution can be described using the computational fluid dynamics (CFD) technique, their dependency on the influential parameters has not been clarified. [13][14][15] Guo et al 16 numerically described unsteady heat transfer between a circulating air jet and a target plate. They found Nu increased drastically as the jet was initiated and then approached a stable value after about 80 s of operation.…”

Section: Introductionmentioning

confidence: 99%

Effect of flow on heat transfer between a translating plate and gas discharged from multiple inclined slot nozzles

Kang,

Yin,

et al. 2023

Proceedings of the Institution of Mechanical Engineers, Part C:

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The presented study aims to reveal flow and heat transfer characteristics as a translating aluminum plate is impinged by high-temperature gas discharged from inclined slot nozzles. The computational fluid dynamics (CFD) and the fluid-solid interaction (FSI) techniques were used to simulate the impingement process. A comprehensive comparison of flow, heat transfer, and structural parameters was implemented. The results indicate that twin vortices are produced between the two inclined nozzles. When the velocity ratio increases from 0.1 to 1.0, the vortex at the left expands, while the right one is compressed. Meanwhile, average Nusselt number and the pressure coefficient exhibit opposite variation tendencies. The highest average pressure coefficient of 0.45 arises at a velocity ratio of 0.5. As the plate-nozzle distance increases, characteristic flow structures are developed, and the distributions of temperature and the pressure coefficient are uniformized. The maximum Nusselt number decreases from 473 to 266 when the nondimensional plate-nozzle distance increases from 4 to 8. Large deformation occurs at the middle part of the plate. High equivalent stress is concentrated at the front and rear ends of the plate, which is insensitive to the velocity ratio and the plate-nozzle distance.

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