Vol 8, No 1 (2017) > Mechanical Engineering >

Traditional Catamaran Hull Form Configurations that Reduce Total Resistance

Muhammad Iqbal, Samuel Samuel


Abstract: Catamaran resistance is
very complex compared to monohull resistance, so it is particularly worthy of
research. The below-water-level hull form influences the fluid flow
characteristics around the ship, which either increases or decreases the total
resistance. This study focuses on developing a new hull form by using the
Lackenby Method to modify an existing hull form in such a way that reduces the
total resistance. The total resistance was calculated using computational fluid
dynamics, since the Navier-Stokes equation is built into the Tdyn software. The
research results show that hull form changes can in fact decrease or increase
the ship’s total resistance. The best new hull form was chosen for its value of
least total resistance.
Keywords: Catamaran; CFD; Hull Form; Lackenby Method; Resistance

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