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Performance and Off-Design Characteristics for Low Pressure Turbine Outlet Guide Vanes: Measurements and Calculations

Johan Hjärne (Institutionen för tillämpad mekanik) ; Jonas Larsson ; Lennart Löfdahl (Institutionen för tillämpad mekanik)
2006 ASME 51st Turbo Expo; Barcelona; Spain; 6 May 2006 through 11 May 2006 Vol. 6 Part A (2006), p. 649-658.
[Konferensbidrag, refereegranskat]

This paper presents 2D and SD-numerical simulations compared with experimental data from a linear Low Pressure Turbine/Outlet Guide Vane (LPT/OGV) cascade at Chalmers in Sweden. Various performance characteristics for both on and off design cases were investigated, including; pressure distributions, total pressure losses and turning. The numerical simulations were performed with the goal to validate simulation methods and create best-practice guidelines for how to accurately and reliably predict performance and off-design characteristics for an LPT/OGV. The numerical part of the paper presents results using different turbulence models and levels of mesh refinement in order to assess what is the most appropriate simulation approach. From these results it can be concluded that the k-ε Realizable model predicts both losses and turning most accurately for both on and off design conditions.

Denna post skapades 2010-08-31. Senast ändrad 2016-06-09.
CPL Pubid: 125441


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Institutionen för tillämpad mekanik



Chalmers infrastruktur