Viscous Resistance Acting on a Symmetrical Hull with Different Turbulent Viscous Model

Abstract

This topic talks about effects of the turbulent viscous models on viscous resistances acting on a symmetrical hull in water by using a commercial Computational Fluid Dynamic (CFD). An original symmetrical model is made from under water hull part of a ship or a hull part of an Autonomous Underwater Vehicles (AUV). By using CFD, the hydrodynamic performances and viscous resistances acting on the model is investigated in the different computed cases. The eight turbulent viscous models as well as k-ε standard, k-ε realizable, k-ε RNG, k-ω standard, k-ω SST, Reynolds stress seven equations, transition fourth equation and Transition k-kl-ω three equations are used in the simulation. By analyzing obtained results, effect of the turbulent viscous models on hydrodynamic performances of the symmetrical model is investigated. The CFD results of pressure distribution, velocity distribution in boundary layer around hull is useful to understand the reasons effects on viscous resistance of the symmetrical model.