The knowledge of detailed 3D-flow field in a rotor axial-flow fan is crucial both for the correct evaluation of aerodynamic efficiency and for the improvement of the design of this turbomachine. These goals may be reached either by using a reliable fluid dynamic computational code or by performing detailed experimental investigations. In this paper a comparison is presented between experimental data and numerical results downstream of an industrial axial flow fan at two different load conditions. In spite of the complex three-dimensional flow, the strong secondary effects and the wide boundary layers experimentally observed downstream of the rotor, numerical results show a remarkably good agreement with measurements. These results show that the use of CFD in the design process may give a strong impulse to the development of more performing fans in the near future.

Flow-Field Downstream of an Axial-Flow Fan: Comparison Between Numerical simulations and Experimental Results at Different Loads

PUDDU, PIERPAOLO
2004-01-01

Abstract

The knowledge of detailed 3D-flow field in a rotor axial-flow fan is crucial both for the correct evaluation of aerodynamic efficiency and for the improvement of the design of this turbomachine. These goals may be reached either by using a reliable fluid dynamic computational code or by performing detailed experimental investigations. In this paper a comparison is presented between experimental data and numerical results downstream of an industrial axial flow fan at two different load conditions. In spite of the complex three-dimensional flow, the strong secondary effects and the wide boundary layers experimentally observed downstream of the rotor, numerical results show a remarkably good agreement with measurements. These results show that the use of CFD in the design process may give a strong impulse to the development of more performing fans in the near future.
2004
1-86058-475-6
Axial-Flow Fan; 3D-flow; CFD-experimental comparison
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11584/16658
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