eng Science and Education Publishing American Journal of Mechanical Engineering 2328-4110 2019-02-24 7 1 35 40 10.12691/ajme-7-1-4 AJME2019714 article Seyed Morteza Javadpour 1 Ali Eskafi Noghani 2 Hassan Ghassemi gasemi@aut.ac.ir 2 David Molyneux 3 Department of Mechanical Engineering, University of Gonabad, Iran Department of Maritime Engineering, Amirkabir University of Technology, Tehran, Iran Department of Ocean and Naval Engineering, Memorial University of Newfoundland, St. John’s, Canada This paper is presented the interaction between propeller and rudder at different operating conditions by using ANSYS-Fluent software. A moving reference frame (MRF) method is applied and the flow equations are solved using Reynolds-Averaged Navier-Stokes (RANS) method and the K-ω SST turbulent model. The propeller is selected VP1304 and rudder is spade type with NACA0015 section. Hydrodynamic characteristics of the propeller with and without rudder, effect of rudder on the propeller performance, rudder lift and drag, pressure and velocity contour are presented discussed. The results show that the rudder effect on the propeller is small while the propeller on the lift and drag of the rudder may be significant. http://pubs.sciepub.com/ajme/7/1/4/ajme-7-1-4.pdf propeller VP1304 spade rudder hydrodynamic characteristics lift and drag coefficients