"Experiences had been conducted in the 90's showing that longitudinal grooves actually reduce the aerodynamic drag. However, plastic stickers used in that period suffered inconvenient.
In this programme, it is proposed to realize various shapes of grooved surfaces thanks to a new casting method, developed by the applicant.
The project aims at providing ONERA with models covered with grooved paint of several profiles, in order to qualify the aerodynamic performance.
After an initial study and process definition, paint films of different shapes will be designed and realised against molding surfaces. Then, films will be applied onto a model, to be further tested into a wind tunnel.
The paint film process will use approved aeronautical paints with as little modification as possible, so as to prepare future application on aircrafts."
Fields of science
Call for proposal
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