Aerodynamic Analysis of Low-Pressure Axial Fans Installed in Parallel

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Fältnamn	Indikatorer	Metadata
000		03167naa a2200349 4500
001		oai:research.chalmers.se:221a0ac8-ff4d-4bba-9bc4-5756ce75ae75
003		SwePub
008		240201s2024 \| \|\|\|\|\|\|\|\|\|\|\|000 \|\|eng\|
024	7	a https://research.chalmers.se/publication/5396442 URI
024	7	a https://doi.org/10.1115/1.40642922 DOI
040		a (SwePub)cth
041		a engb eng
042		9 SwePub
072	7	a art2 swepub-publicationtype
072	7	a ref2 swepub-contenttype
100	1	a Ghosh, Debarshee,d 1995u Chalmers tekniska högskola,Chalmers University of Technology4 aut0 (Swepub:cth)ghoshd
245	1 0	a Aerodynamic Analysis of Low-Pressure Axial Fans Installed in Parallel
264	1	c 2024
520		a Ducted rotor-only low-pressure axial fans play an integral role in automotive thermal management. The tightly packed under-hood region and down-stream heat-exchanger shape limit the fan diameter. In order to circumvent this limitation, multiple cooling fans of small diameters are tightly packaged and placed in parallel. Currently, there is limited scientific work, that study the aerodynamics of low-pressure axial fans when installed in parallel. This work aims to quantify the aerodynamic performance and the flow-field as a result of installing low-pressure axial fans in parallel through computational fluid dynamics (CFD). Publicly available experimental data from Friedrich-Alexander University is used for the validation of the numerical setup. Three-dimensional, full-annulus, unsteady Reynolds-averaged Navier‐Stokes (URANS) analysis has been performed for both a single-fan and two-fans installed in parallel and their respective aerodynamic performance has been compared for the operation condition identified as the best efficiency point in experiments. Only small differences are observed in the overall aerodynamic performance of the two-fans in parallel compared to a single-fan. A circumferential nonuniformity in the form of a local high-pressure zone at the inlet of the fan is observed when the two-fans are placed in parallel. The resulting circumferential nonuniformity is quantified, both in space and time. A strong correlation is found between the pressure fields of the two-fans installed in parallel.
650	7	a TEKNIK OCH TEKNOLOGIERx Maskinteknikx Strömningsmekanik och akustik0 (SwePub)203062 hsv//swe
650	7	a ENGINEERING AND TECHNOLOGYx Mechanical Engineeringx Fluid Mechanics and Acoustics0 (SwePub)203062 hsv//eng
653		a low-pressure axial fans
653		a fans in parallel
653		a automotive thermal management
653		a multifan
653		a correlation
700	1	a Andersson, Niklas,d 1976u Chalmers tekniska högskola,Chalmers University of Technology4 aut0 (Swepub:cth)nian
700	1	a Etemad, Sassan,d 1955u Chalmers tekniska högskola,Chalmers University of Technology4 aut0 (Swepub:cth)sassan
710	2	a Chalmers tekniska högskola4 org
773	0	t Journal of Fluids Engineering, Transactions of the ASMEg 146:5q 146:5x 1528-901Xx 0098-2202
856	4 8	u https://research.chalmers.se/publication/539644
856	4 8	u https://doi.org/10.1115/1.4064292

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