Eventos Anais de eventos
COBEM 2019
25th International Congress of Mechanical Engineering
NUMERICAL ANALYSIS OF THE SWEPT BLADES EFFECT ON THE AERODYNAMIC PERFORMANCE OF AXIAL FANS
Submission Author:
Tania Marie Arispe Angulo , MG , Brazil
Co-Authors:
Tania Marie Arispe Angulo, Waldir de Oliveira, Ramiro Gustavo Ramirez Camacho, Edna da Silva, GERMÁN ENRIQUE NIÑO DEL RÍO
Presenter: Tania Marie Arispe Angulo
doi://10.26678/ABCM.COBEM2019.COB2019-1524
Abstract
The sweep forward in axial flow fan blades, which consists of a tangential displacement in the direction of rotor rotation, has proved to have several advantages in aerodynamic performance. Some of the sweep advantages in axial fan blades are the increased in efficiency and total pressure variation, and decreased in the sound power level, compared to non-swept blades or shaped curved blades in arc of circle format. The motivation of this research is the analysis through Computational Fluid Dynamics, of the aerodynamic performance, considering different configurations of forward swept blades of axial fans. In this sense, the present work presents the numerical study of fans rotor with swept blades, designed from the operational data of a shaped flat curved blades fan. Different swept blade fan configurations are generated, based on cubic functions that define the center line of the blade, taken at 50% of the leading edge of each blade airfoil. According to the aerodynamic performance analysis, it is evidenced that the fans with swept blades present high efficiency for a wide flow rate. Being that those fans with sweep in the blades most accentuated in the tip, present a better aerodynamic performance.
Keywords
Computational Fluid Dynamics, Sweep, Axial fan, Aerodynamics
