University of Cambridge > Talks.cam > Fluid Mechanics (CUED) > The impact of surface roughness geometry on aero-engine intakes at incidence

The impact of surface roughness geometry on aero-engine intakes at incidence

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Shock Wave-Boundary-Layer Interactions, or SBLI ’s, are known to form on engine inlets within a complex transonic flow-field during typical take-off and climb configurations. On the engine inlet, there are a number of potential sources of surface roughness, such as novel de-icing and acoustic systems, or surface contamination. The impact on the flow-field structure, as a result of this roughness, may lead to detrimental side effects, such as losses in engine efficiency or intake flow stability. Previous research into two-dimensional roughness shapes demonstrated flow-field changes, for example a thicker downstream-boundary layer compared to a smooth surface. This seminar compares the impact of a two-dimensional ridge roughness to a three-dimensional cubed roughness on the inlet flow-field.

This talk is part of the Fluid Mechanics (CUED) series.

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