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**Harvard**

Henriksson, L., Dahl, E., Gullberg, P. och Löfdahl, L. (2013) *CFD Method and Simulations on a Section of a Detailed Multi-Louvered Fin where the Incoming Air is Directed at 90° and 30° Relative to the Compact Heat-Exchanger*.

** BibTeX **

@conference{

Henriksson2013,

author={Henriksson, Lisa and Dahl, Erik and Gullberg, Peter and Löfdahl, Lennart},

title={CFD Method and Simulations on a Section of a Detailed Multi-Louvered Fin where the Incoming Air is Directed at 90° and 30° Relative to the Compact Heat-Exchanger},

booktitle={SAE 2013 Commercial Vehicle Engineering Congress (SAE Technical Paper)},

pages={paper no. 2013-01-2417},

abstract={This paper presents results and a Computational Fluid Dynamics (CFD) method for simulation of a detailed louvered fin for a multi-louvered compact heat-exchanger. The airflow was angled at 90°, +30° and -30° relative to the heat-exchanger to evaluate changes in static pressure drop and airflow characteristics. The investigation was based on three heat-exchangers with thicknesses of 52mm and two of 19mm. One period of a detailed louvered fin was simulated for two airflows for each heat-exchanger. The pressure drop data was thereafter compared to experimental data from a full-size heat-exchanger.
From the pressure drop and the airflow characteristic results recommendations were made that those kinds of simulations could be defined as steady state, and with the kω-SST turbulence model. For the same heat-exchanger angle the airflow within the core was similar, with a turbulent characteristic behind it. The static pressure drop was reduced significantly for the ±30° cases compared to the 90° angled heat-exchanger to approximately one third, when comparing for the same mass airflow rates. Since the test section area was defined as constant the velocity through the heat-exchanger core varied for the 90° and the 30° cases. When comparing the core velocity it was observed that there were minor losses due to the redirection of the airflow for the 30° angle compared to the 90° case. The results showed that the 30° case, where the inlet airflow was parallel to the louvers, had a higher pressure drop than the other 30° case. It was also observed that even when the inlet airflow angle varied, the outlet airflow angle from the heat-exchanger only varied 4.3-6.4°.},

year={2013},

}

** RefWorks **

RT Conference Proceedings

SR Electronic

ID 190940

A1 Henriksson, Lisa

A1 Dahl, Erik

A1 Gullberg, Peter

A1 Löfdahl, Lennart

T1 CFD Method and Simulations on a Section of a Detailed Multi-Louvered Fin where the Incoming Air is Directed at 90° and 30° Relative to the Compact Heat-Exchanger

YR 2013

T2 SAE 2013 Commercial Vehicle Engineering Congress (SAE Technical Paper)

SP 2013

AB This paper presents results and a Computational Fluid Dynamics (CFD) method for simulation of a detailed louvered fin for a multi-louvered compact heat-exchanger. The airflow was angled at 90°, +30° and -30° relative to the heat-exchanger to evaluate changes in static pressure drop and airflow characteristics. The investigation was based on three heat-exchangers with thicknesses of 52mm and two of 19mm. One period of a detailed louvered fin was simulated for two airflows for each heat-exchanger. The pressure drop data was thereafter compared to experimental data from a full-size heat-exchanger.
From the pressure drop and the airflow characteristic results recommendations were made that those kinds of simulations could be defined as steady state, and with the kω-SST turbulence model. For the same heat-exchanger angle the airflow within the core was similar, with a turbulent characteristic behind it. The static pressure drop was reduced significantly for the ±30° cases compared to the 90° angled heat-exchanger to approximately one third, when comparing for the same mass airflow rates. Since the test section area was defined as constant the velocity through the heat-exchanger core varied for the 90° and the 30° cases. When comparing the core velocity it was observed that there were minor losses due to the redirection of the airflow for the 30° angle compared to the 90° case. The results showed that the 30° case, where the inlet airflow was parallel to the louvers, had a higher pressure drop than the other 30° case. It was also observed that even when the inlet airflow angle varied, the outlet airflow angle from the heat-exchanger only varied 4.3-6.4°.

LA eng

DO 10.4271/2013-01-2417

LK http://dx.doi.org/10.4271/2013-01-2417

OL 30