Keeping an Air Layer under Water: Perspectives of Novel Bio-Inspired Ship Coatings based on the Salvinia Effect

T. Schimmel
Karlsruhe Institute of Technology, DE

Keywords: coatings, water

Summary:

Ships use a considerable part of their total energy consumption to overcome friction with the surrounding water. This friction between ship and water could be reduced drastically by a lubricating layer of air between ship and water. In close cooperation, scientists from the universities of Bonn, Karlsruhe and Rostock recently discovered the Salvinia® Effect [1], an effect which is demonstrated by a plant and which allows to keep a permanent air layer under water – opening perspectives for the development of novel, air-retaining surfaces.