Open Access

ABSTRACT

Improving of the micro-turbine's centrifugal impeller performance by changing the blade angles

R. A. Tough^1,2, A. M. Tousi², J. Ghaffari²

1 Corresponding author. E-mail address: reza_tog@yahoo.com
2 Department of Aerospace Engineering, Amir Kabir University of Technology, Tehran, Iran

The International Conference on Computational & Experimental Engineering and Sciences 2010, 14(1), 1-22. https://doi.org/10.3970/icces.2010.014.001

Abstract

In this paper, micro-turbine centrifugal impeller with three different blade angles was investigated by using Computational Fluid Dynamics (CFD) method. The other basic geometric parameters are held constant. The influence of the blade angles change on the observed values was determined from numerical solution of the flow in the impeller with help of the FLUENT software. The numerical simulation focused on the air flow from compressor impeller inlet to exit, and the performance of impeller is predicted. The numerical solution was performed for original impeller geometry and for two other cases, in which blade inlet angle and backward sweep was changed. The standard$k - \varepsilon$ turbulence model was used to obtain the eddy viscosity. Performance of the code was verified using measured data for the Eckardt impeller.

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Keywords

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