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Simulation of Incompressible Viscous Flow Around a Ducted Propeller Using a RANS Equation Solver
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2001
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AeroacousticsRans Equation SolverEngineeringFluid MechanicsMechanical EngineeringTurbulenceMarine EngineeringFinflo SolverUnsteady FlowCompressible FlowKa Series PropellerHydrodynamic StabilityMarine HydrodynamicsDucted PropellerIncompressible Viscous FlowIncompressible FlowFlow PhysicPropulsionReynolds Averaged Navier-stokesAerospace EngineeringTurbulence ModelingAerodynamics
The incompressible viscous flow around a marine ducted propeller is simulated by solving the Reynolds Averaged Navier-Stokes (RANS) equations with the k-e turbulence model. The FINFLO solver developed at Helsinki University of Technology is used in the calculations. FINFLO is a multiblock cell-centered finite-volume computer code with sliding mesh, moving-grid and free-surface capabilities. In this paper, the flow over a Ka series propeller and NSMB nozzle 19A is analyzed. The calculated flow patterns downstream of the propeller and duct are illustrated and compared with experiments for one advance number. Calculated thrust and torque are also provided for several advance numbers. Good correlation with experiments is obtained in terms of force coefficients and velocity distributions.