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Computational aerodynamic performance of mixed-flow turbine blade design

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

Puni tekst: engleski PDF 1.785 Kb

str. 201-213

preuzimanja: 331



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.

Ključne riječi

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

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