Computational aerodynamic performance of mixed-flow turbine blade design

Authors

  • Zine Khelloufi Omar University of Science and Technology of Oran - Mohamed-Boudiaf BP 1505, El M’Naouer,31000, Oran, Algeria.
  • Hamel Mohammed
  • Hamidou Mohamed Kamel

Keywords:

mixed flow turbine, turbocharger, blade angle, incidence angle, CFX

Abstract

The performance of two mixed flow turbocharger turbine rotors is numerically investigated. Significantly, the two rotors differ mainly in their inlet angle geometry, one has a constant blade angle (rotor A) and the other has a nominal constant incidence angle (rotor B). Since experimental data alone are not sufficient for understanding the detailed flow field within the turbocharger turbine stage, a complete 3-D Computational Fluid Dynamics model is developed using commercial software Ansys CFX. The model is validated against experimental data for all steady conditions. This study presents a numerical performance prediction of two mixed flow turbine rotors for a wide range of rotational speeds and pressure ratios. The influence of inlet blade angle on the turbine performances is also investigated.

Author Biography

Zine Khelloufi Omar, University of Science and Technology of Oran - Mohamed-Boudiaf BP 1505, El M’Naouer,31000, Oran, Algeria.

Laboratory of Applied Mechanics, Faculty of Mechanical Engineering.

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Published

2017-05-22

Issue

Engineering Review, Vol. 37, No. 2

Section

Articles

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