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Local Nusselt number evaluation in the case of jet impingement

Abstrakt

Jet impingement still is one of demanding cases regarding computational fluid dynamics, due to its highly turbulent behaviour, with occurrence of turbulent-laminar transition. Even recently developed methods exhibit some drawbacks – RANS based simulations lack accuracy, LES and DNS based ones require too much computational time. Hybrid methods also exist, but their development and validation is in progress. Nevertheless, CFD application can play major role in the investigation of jet impingement phenomena. While the flat surface impingement is widely discussed in the literature, there is lack of data regarding non-flat surfaces – the ones that might exist for example in the heat exchangers. In the following paper, the numerical simulation of both flat and non-flat surfaces single jet impingement is presented, with the aim of precise description of the turbulence models impact on the thermal and hydrodynamic results. Choice of turbulence model is crucial for sufficient calculation outcome. Only the complex analyses, shown in the article, including the turbulence and momentum budgets comparison between particular models, can reveal significant and meaningful differences.

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Informacje szczegółowe

Kategoria:
Aktywność konferencyjna
Typ:
materiały konferencyjne indeksowane w Web of Science
Opublikowano w:
Journal of Physics : Conference Series nr 1101, strony 1 - 8,
ISSN: 1742-6588
Tytuł wydania:
23rd Fluid Mechanics Conference (KKMP) strony 1 - 8
ISSN:
1742-6588
Język:
angielski
Rok wydania:
2018
Opis bibliograficzny:
Kura T., Fornalik-Wajs E., Wajs J., Kenjeres S..: Local Nusselt number evaluation in the case of jet impingement, W: 23rd Fluid Mechanics Conference (KKMP), 2018, IOP PUBLISHING LTD,.
DOI:
Cyfrowy identyfikator dokumentu elektronicznego (otwiera się w nowej karcie) 10.1088/1742-6596/1101/1/012018
Bibliografia: test
Weryfikacja:
Politechnika Gdańska

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