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Paper Information

Journal:   JOURNAL OF APPLIED FLUID MECHANICS (JAFM)   2016 , Volume 9 , Number 2; Page(s) 935 To 944.
 
Paper: 

EXPERIMENTAL AND NUMERICAL INVESTIGATION OF A 60CM DIAMETER BLADELESS FAN

 
 
Author(s):  JAFARI M., AFSHIN H.*, FARHANIEH B., BOZORGASAREH H.
 
* CENTER OF EXCELLENCE IN ENERGY CONVERSION, SCHOOL OF MECHANICAL ENGINEERING, SHARIF UNIVERSITY OF TECHNOLOGY, TEHRAN, IRAN
 
Abstract: 

Bladeless fan is a novel type of fan with an unusual geometry and unique characteristics. This type of fan has been recently developed for domestic applications in sizes typically up to 30cm diameter. In the present study, a Bladeless fan with a diameter of 60cm was designed and constructed, in order to investigate feasibility of its usage in various industries with large dimensions. Firstly, flow field passed through this fan was studied by 3D modeling. Aerodynamic and aeroacoustic performance of the fan were considered via solving the conservation of mass and momentum equations in their unsteady form. To validate the acoustic code, NACA 0012 airfoil was simulated in a two dimension domain and the emitted noise was calculated for Re=2×105. Good agreement between numerical and experimental results was observed by applying FW-H equations for predicting noise of the fan. To validate the simulated aerodynamic results, a Bladeless fan with a 60cm diameter was constructed and experimentally tested. In addition, the difference between the experimental and numerical results was acceptable for this fan. Moreover, the experimental results in the present study showed that this fan is capable to be designed and used for various industrial applications.

 
Keyword(s): BLADELESS FAN, 3DSIMULATION, COMPUTATIONAL FLUID DYNAMICS (CFD), FW-HNOISE FORMULATIONS
 
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