Simulation of a Free Surface Flow over a Container Vessel Using CFD
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International Journal of Engineering Trends and Technology (IJETT)
Thursday, June 25, 2015

Practical application of Computational Fluid
Dynamics (CFD) for predicting flow pattern around a ship hull
and calculation of total resistance has been a topic of great
interest for researchers in ship hydrodynamics. Today, several
CFD tools have been developed to analyse and capture the free
surface around a ship. The flow problem is rich in complexity
and poses many challenges during simulation. Many mesh sizes
were tried during modelling with Realizable k-epsilon and shear
stress Transport (SST) k-omega turbulent models. The free surface
wave pattern and the total resistance (shear and pressure
resistances) were calculated. The effects of sinkage and trim were
also studied using STAR-CCM+ software implementing a
Reynolds averaged Nervier stokes (RANS) equation solver with
free-surface capabilities. Predicted results were compared
against empirical data showing good agreement. The method is
found to be stable and is believed to predict the resistance for any
ship with or without trim and sinkage.
Key words: Turbulent Models, Free-surface flow, ship resistance,
trim and sinkage

Author Name: 
Krishna Atreyapurapu
Bhanuprakash Tallapragada
Kiran Voonna
Author Company: 
Dept. of Marine Engineering, A U C E., Visakhapatnam, India