Drag reduction study of a microfiber-coated cylinder

Drag reduction study of a microfiber-coated cylinder

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Abstract Drag reduction for a bluff body is imperative in a time of increasing awareness of the environmental impact and sustainability of air travel.Microfiber coating has demonstrated its ability to reduce drag on a bluff body.This was done by applying strips of the coating to a us polo assn mens sweaters cylinder.To widen the application range of the microfiber coating, a fully microfiber-coated cylinder is studied as it has no directionality relative to incoming flow.

It is hypothesized that a large coating coverage will cause a reduction in drag dependent on the Reynolds number Re.The fully microfiber-coated cylinder is studied in a wind tunnel and the drag coefficient is determined at a range of Re in the subcritical-flow regime.It is found that the drag coefficient of the microfiber-coated cylinder is a function of Re, and the critical Reynolds number, where the maximum drag reduction occurs, click here is lower for a microfiber-coated cylinder compared to that of a conventional smooth-surface cylinder.