In the marine marine industry, skin friction reduction is one of the most important challanges. The superhydrophobic surface and liquid-infused surface (LIS) have been introduced by the drag reduction technique, but there is a limit to the lack of persistence. Seeweed and marine animals (SMAs) have a sustainable surface structure that overcomes these limitations. Cormorant has a superhydrophobic surface that maintains air bubbles on the feather, and hagfish and Miyeok are LISs that use mucus as a lubricant. The surface structure and drag reduction characteristics of these SMAs were obs...   내용 보기