Parametric Study of a Bladeless Fan Geometry: Investigating the Influence of Geometry Parameters on Discharge Ratio and Thrust Force

• Main Authors: Maîtrejean, Guillaume, Kempf, Merlin, Antoniali, Lucas, Feirrera-Lopes, Karrouch, Mohamed, Bleses, Didier, Truong, François, Roux, Denis C. D
• Format: Journal Article
• Language: English
• Published: 05-06-2024
• Subjects: Physics - Fluid Dynamics
• DOI: 10.48550/arxiv.2406.03305

The innovative bladeless design of the AirMultiplier, patented by Dyson in
2009, has generated significant interest due to its unique approach to air
circulation that leverages the Coanda effect. In this study, we present a
comprehensive parametric analysis of a simplified bladeless fan geometry, with
a specific focus on the discharge ratio and generated thrust force for small to
medium radii (5 to 200mm) and a range of flow rates spanning from 1 to 100g/s.
In addition to the radii and mass flow rates, this study also addresses the
effect of the slit nozzle thickness on the discharge ratio and thrust force of
the AirMultiplier. By exploring the influence of this additional parameter, we
aim to provide a more complete understanding of the performance characteristics
of the geometry and to offer insights that could inform the design and
optimization of similar bladeless geometries.