Numerical Analysis of the Effect of Microriblet on the Lift and Drag of the WIG

Engineering marvels have led to the design and build the wing-in-ground (WIG) craft to fill the gap between ships and aircraft as a new opportunity for transportation. One of the most significant issues in WIG craft are drag and lift force when the craft starting to plane. Living nature has been used to solve the mentioned challenge. There are various ways in nature to reduce drag force in fluid flow, such as the evidence in the movements of fish, sharks and dolphins, the skin of fast-swimming sharks is covered by microriblets that assist them to move fast. In this study, Computational Fluids Dynamics (CFD) method is implemented to the investigation the influence of microriblet film on aerodynamic of the WIG craft. A Clark-Y wing was simulated in ANSYS CFX simulation software at various Reynolds number to investigate the effects of riblets on aerodynamic characteristics of the wing in ground effects.