COMPUTATIONAL AERODYNAMIC PERFORMANCE OF MIXED-FLOW TURBINE BLADE DESIGN

Zine Khelloufi, Omar -Hamel Mohammed -Hamidou, Mohamed Kamel
Engineering Review   unpublished
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
more » ... 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.
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