Experimental comparison between a counter-rotating axial-flow fan and a conventional rotor-stator stage - Archive ouverte HAL Accéder directement au contenu
Communication Dans Un Congrès Année : 2013

Experimental comparison between a counter-rotating axial-flow fan and a conventional rotor-stator stage

Résumé

Based on the requirement of energy consumption level and weight and dimension restriction, compact axial machines are highly demanded in many industrial fields. The counter-rotating axial-flow fans could be a promising way to achieve these requirements. Because of the reduction of rotational speed and a better homogenization of the flow downstream of the rear rotor, these machines may have very good aerodynamic performances. However, they are rarely used in subsonic applications, mainly due to poor knowledge of the aerodynamics in the mixing area between the two rotors, where very complex structures are produced by the interaction of highly unsteady flows. The purpose of the present work is to compare the global performances (static pressure rise and static efficiency) and the wall pressure fluctuations downstream of the first rotor for three different stages operating at the same point: a single subsonic axial-flow fan, a conventional rotor-stator stage and a counter-rotating system that have been designed with in-house tools. The counter-rotating system allows large savings of energy with respect to the other two systems, for lower rotation rates and by adjusting the distance between the two rotors, a solution with comparable wall pressure fluctuations levels for the three systems is found.
Fichier principal
Vignette du fichier
contra-rotating_corrFlo3.pdf (376.96 Ko) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)
Loading...

Dates et versions

hal-00795006 , version 1 (27-02-2013)

Identifiants

  • HAL Id : hal-00795006 , version 1

Citer

Juan Wang, Florent Ravelet, Farid Bakir. Experimental comparison between a counter-rotating axial-flow fan and a conventional rotor-stator stage. 10th European Turbomachinery Conference, Apr 2013, Lappeenranta, Finland. pp.1. ⟨hal-00795006⟩
208 Consultations
3196 Téléchargements

Partager

Gmail Facebook X LinkedIn More