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March 5, 2026International Journal of Turbomachinery Propulsion and PowerOpen Access

Numerical Investigation of Scaling Effects on the Performance Characteristics of Large-Scale Axial-Flow Fans

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Authors

TRTristan Oliver Le RouxCMChris J. MeyerSSSybrand Johannes van der Spuy

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Overview

Numerical investigation reveals how scaling impacts performance characteristics of axial-flow fans, suggesting improved testing methods.

Key Points

  • The central aim is to explore how scaling affects the performance characteristics of large-diameter axial-flow fans.
  • Conducted numerical investigations using Reynolds-Averaged Navier–Stokes (RANS) approach.
  • Compared performance characteristics of different fan sizes: 0.63 m, 1.542 m, 3.658 m, and 7.315 m.
  • Used experimental results and four numerical models for accurate comparisons.
  • Evaluated testing in A-type experimental setup at Stellenbosch University.
  • The RANS approach can effectively predict multiple fan sizes' performance without relying on specific empirical correlations.
  • Reynolds number significantly impacts performance characteristics during scaling experiments.
  • Numerical models matched well with experimental results, validating their use for large-scale fan analysis.

Cite This Study

Roux et al. (2026) studied this question.

synapsesocial.com/papers/69a91d9bd6127c7a504c0877https://doi.org/10.3390/ijtpp11010015
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