Numerical Simulation of Fluid Flow on The Transportation of Tourism Ship-Type Catamaran

The hull of a ship is the most notable structural entity, which is the watertight enclosure that protects the cargo, machinery, and accommodation spaces of the ship from the weather, flooding, and structural damage. Subsequently, the hull design is essential to other parts to predict the magnitude of the resistance, and each shape of the catamaran affects the fluid flow characteristics. There are currently many catamaran designs found with varying configurations and dimensions. The operational and mission functions heavily influence the design attributes and numerical fluid flow simulation on a catamaran was performed using the Navier-Stokes equation. Subsequently, by solving numerically and simulations, the magnitude of the resistance component acting on the catamaran hull will be known for laminar and turbulent flow. From the simulation results, it is clear that symmetrical and asymmetrical fluid flow around the keel is caused by the emergence of flow interactions between the gutwaves, and the amount of pressure that arises around the keel is asymmetrical relative to the centerline.