eng Science and Education Publishing American Journal of Civil Engineering and Architecture 2328-3998 2020-05-12 8 2 56 61 10.12691/ajcea-8-2-5 AJCEA2020825 article Alireza Nadery alireza.nadery33@gmail.com 1 Hassan Ghassemi 1 Department of Maritime Engineering, Amirkabir University of Technology, Tehran, Iran This paper is numerically presented the effect of the pre-swirl stator (or say stator) on the hydrodynamic performance of the ship propeller. The flow is oscillating into the propeller that is the same at each radius. The propeller is selected KP505 and the stator is 4 blades mounted at upstream of the propeller. With a computational fluid dynamics (CFD) method based on the general CFD by STAR-CCM+ Solver, the thrust and torque coefficients for one blade and whole blades during one cycle, the pressure at a specific on the back and face sides of the propeller and axial and cross velocities are presented and discussed. http://pubs.sciepub.com/ajcea/8/2/5/ajcea-8-2-5.pdf ship propeller stator pressure distribution thrust and torque coefficients