Resistance on Catamaran Decommissioning Unit: A Comparison of Numerical Analysis (Two Turbulence Models) to Model Test Result

Abstract A new concept design Catamaran Decommissioning Unit has been developed by Research Center for Hydrodynamics Technology Indonesia. The catamaran a unique shape, however in order to achieve resilient and sustainable the decommissioning unit as it resistance analysis both model testing numerical calculation must be conducted. value from needs validated with results towing tank. of scaling factor λ=36 was taken object study. test conducted tank service speed varies 7-15 knots. As comparison, using CFD method being performed under two different turbulence models (k-ε k-ω SST) same regarding experimental parameter. Iin conclusion, SST gives better performance smaller relative deviation compared k-ε model.