Numerical Calculation of Hydrodynamic Interference Coefficients between Hull,Rudder and Propeller
CFD developed rapidly in capability and practicality during past years.A lot of research works on numerical simulation of viscous flow field around ship were widely carried out in past decades.But the research of interference effect among the hull,rudder and propeller was rarely concerned.In this paper,based on an unsteady Reynolds Averaged Navier-Stokes method,the dynamic mesh methods(6DOF) are adopted to simulate straight line and oblique towing test of ship with twin propellers and twin rudders.And based on the simulation results,the interference coefficients,such as effective weak coefficient ωp,rudders effective longitudinal velocity uR,effective attack angle aR,rudder forces modificatory factor aH for shiphandling derivational transverse force and its dimensionless distance to ships gravity point,are calculated.The computed results of this paper agree well with the experimental results carried out in the tower tank of ITTC.It shows that the methods on numerical calculation of Interference Coefficients between hull,rudder and propeller is successful.
Computational Fluid Dynamics(CFD) Ship Propeller Rudder Interference
Xiao Wang Ming Wu Rong-Rong Ying
Navigation Dept,Dalian Navy Academy,Dalian 116018,China
国际会议
广州
英文
1949-1953
2012-11-16（万方平台首次上网日期，不代表论文的发表时间）