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- Title
A numerical investigation on the performance improvement of axial-flow automotive cooling fan with beads.
- Authors
Hur, K. H.; Haider, B. A.; Sohn, C. H.
- Abstract
This paper presents a CFD analysis of three types of axial-flow magnesium-based automotive cooling fans. The numerical modeling was conducted for geometrically modified fan designs: one with no-beads, the second one with beads at the suction-side of the fan namely reverse-beads fan, and the third one with beads installed at the pressure-side of the fan namely forward-beads fan. The effect of geometric modifications of the fan blades on the volumetric flow rate, fan efficiency, and energy efficiency was investigated using Reynolds-averaged Navier-Stokes (RANS) equations following the multiple reference frame methodology. The fan with no-beads was fabricated using 3D printing technology and tested to measure the flow velocity. Subsequently, the fans with beads along with the no-beads fan designs were numerically analyzed. The volumetric flow rate, fan efficiency, and energy efficiency were quantified as a function of fan rotating speed. The results show that the reverse-beads fan produced a relatively more volumetric flow rate and energy-efficient compared to the forward-beads fan. Moreover, to further improve the performance of the reverse-beads fan, the location and size of the bead structure were varied along the radial direction of the fan blade. The optimized reverse-beads fan significantly improves the fan performance.
- Subjects
FLOW velocity; THREE-dimensional printing; ENERGY consumption
- Publication
Journal of Mechanical Science & Technology, 2020, Vol 34, Issue 8, p3317
- ISSN
1738-494X
- Publication type
Article
- DOI
10.1007/s12206-020-0724-0