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Importance of Three-Dimensional Vehicle Heat Exchanger Modeling

ČlánekStatus neznámýpeer-reviewedpostprint (accepted)
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Datum publikování

2022

Autoři

Schmid, Michal
Paščenko, Petr
Bozkurt, Fatih
Pavel, Petržela

Vedoucí práce

Oponent

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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

Přístup k e-verzi

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)