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ISSN Online: 2379-1748

7th Thermal and Fluids Engineering Conference (TFEC)
SJR: 0.152 SNIP: 0.14 CiteScore™:: 0.5

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Clarivate CPCI (Proceedings) Scopus
May, 15-18, 2022 , Las Vegas, NV, USA

Modeling of Liquid Jet Impingement Heat Transfer on a Rotating Disk: Moving Reference Frame Versus Moving Mesh

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DOI: 10.1615/TFEC2022.mpp.041224


In this paper, the heat transfer characteristics of an axisymmetric liquid jet impinging on a rotating disk are investigated numerically. Two types of rotating models are employed for the computation: moving reference frame (MRF) and moving mesh (MM). Water is used as the working fluid with an inlet temperature of 310 K. The ratio of the spacing between the nozzle exit and the disk to nozzle diameter is 5.33, the rotational Reynolds number (Reω) is 3774, and the jet Reynolds number (Rej) is in the range of 750 − 1500. Effects of Rej on the area averaged Nusselt number based on the disk diameter is presented. Model predictions using MRF and MM are compared against experimental data. At high Rej, both MRF and MM models show a good match against the experimental correlation and an error of around 3% at intermediate values of Rej. The error is amplified at lower Rej to about 12%. It is also shown that under axisymmetric impingement both MRF and MM models predict the local Nusselt number distribution along the rotating disk with less than a 1% difference between the two models.