Development of Riblet Technology for Aircraft Fuel Efficiency

This technical report discusses the development of riblet technology aimed at improving fuel efficiency and reducing CO2 emissions in aircraft. Riblets, inspired by the skin of sharks, are biomimetic structures designed to minimize viscous drag in turbulent boundary layers. The report outlines the challenges faced in practical implementation, particularly in achieving widespread use despite promising results from initial tests. It details the advancements in laser processing technology for creating riblets, which allows for precise formation on various surfaces while maintaining material integrity. The report also presents the potential environmental benefits of riblet application, including significant fuel savings and reductions in CO2 emissions when applied across aircraft fleets. Additionally, it highlights ongoing collaborations with research institutions and airlines to address technical challenges associated with riblet technology, including workability, aerodynamic efficiency, and durability. The findings suggest that riblet technology could play a crucial role in the aviation industry's efforts to enhance energy efficiency and meet carbon neutrality goals.