Uneven Surfaces Conserve Fuel

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"If this finding, made by an international research team at KTH, holds up in tests outside the laboratory, huge savings may be in store for the aviation industry.

In wind tunnel experiments at the Department of Mechanics at KTH, the scientists have created velocity variations against the direction of the flow by placing tiny cylindrical elements on a surface. This hampers the occurrence of instabilities and delays the transition of laminar flow to turbulence."

I wonder if this will benefit the aerodynamics of land or sea vehicles? And, can this knowledge help with the opposite, how to induce turbulence, like better air/fuel mixing?

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John
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