Importance of Three-Dimensional Vehicle Heat Exchanger Modeling
ČlánekStatus neznámýpeer-reviewedpostprint (accepted)Datum publikování
2022
Autoři
Schmid, Michal
Paščenko, Petr
Bozkurt, Fatih
Pavel, Petržela
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Abstrakt
The work demonstrates, via a comprehensive study, the necessity of using a 3D CFD approach for heat exchanger (HTX) modelling within underhood vehicle simulation. The results are presented as the difference between 1D and 3D CFD approaches with a focus on auxiliary fluid (e.g. coolant) temperature prediction as a function of primary fluid (e.g. air) inlet conditions. It has been shown that the 1D approach could significantly underpredict auxiliary fluid inlet temperature due to neglecting the spatial distribution of primary fluid velocity magnitude. The resultant difference in the auxiliary fluid flow HTX inlet temperature is presented and discussed as a function of the Uniformity Index (UI) of the primary fluid flow velocity magnitude. Additionally, the 3D HTX model’s importance is demonstrated in an industrial example of full 3D underhood simulation.
Rozsah stran
p. 1-10
ISSN
1948-5085
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Projekt
SGS_2021_010/Vybrané aspekty z oblasti dopravních prostředků a infrastruktury řešené na DFJP
Zdrojový dokument
Journal of Thermal Science and Engineering Applications, volume 14, issue: 7
Vydavatelská verze
https://doi.org/10.1115/1.4052693
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open access (green)
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Klíčová slova
3D and 1D CFD, heat exchanger, temperature prediction accuracy, uniformity index, primary and auxiliary fluid, 3D and 1D CFD, tepelný výměník
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Except where otherwised noted, this item's license is described as open access (green)