Numerical Simulation of the Effects of Micro Riblets on Hydrodynamics Parameters of Planning Vessels

Nowadays, considering the importance of the energy and speed in the world as well as the limited available energy, the optimum condition should be always considered in designing. In the field of marine industry, considering the length of the water constraints of our country and special strategic situation of the region, there should be an ongoing attempt to reduce energy consumption and increase speed of the high speed crafts. In this research, nature has been used as a guide to reach our target. Study of the skin of the fast marine’s faunas such as sharks and dolphins, has generated the idea of riblet covered surfaces. Various riblet surfaces made in the world and currently used has been studied and ANSYS-CFX has been used to study their performance. In this study riblets applied on planning plate and investigated the effects on hydrodynamics parameters. The results has been validated with the experimental results performed in the towing tank. Riblets can reduce the drag up to 6% in the two phase condition.