Surface non-conformances on the low pressure turbine outlet guide vane flow
Paper i proceeding, 2010

During manufacturing and in-service of the outlet guide vanes various irregularities on the vane surface can occur. These irregular shapes are surface non-conformances in the form of welds, traces or repairs of various forms. Improvement of the aerodynamic performance of the guide vanes requires understanding of the impact of these technological features on the flow field and aerodynamics. Experimental study is performed in a linear cascade facility at Chalmers University. In focus of current work are non-conformances in form of welding traces. The model welding traces were placed at different locations on the suction side of the vane. The influence of these non-conformances on the cascade aerodynamics is evaluated and validation of CFD results obtained by the k-ε realizable and k-ω SST turbulence models is performed.

Flow separation

Turbulence modelling

Losses

Guide vane

Wall protuberance

Författare

Manan Lalit

Chalmers, Tillämpad mekanik, Strömningslära

Valery Chernoray

Chalmers, Tillämpad mekanik, Strömningslära

Jonas Larsson

Volvo

27th Congress of the International Council of the Aeronautical Sciences 2010, ICAS 2010; Nice; France; 19 September 2010 through 24 September 2010

Vol. 4 2851-2859

Ämneskategorier

Maskinteknik

ISBN

9781617820496

Mer information

Skapat

2017-10-08