Estimation of the entrained water effect of tandem propellers based on numerical method

Abstract The objective of the paper is to propose empirical formulas entrained water effect based on numerical method estimate virtual mass and moment inertia for tandem propellers. fluid-solid interaction combined propellers in flow field has been taken into consideration calculation. axial added are calculated a single propeller using finite element existing verify feasibility accuracy method. Consequently, calculation conducted obtain novel properties, which available evaluate influence blade diameter, expanded area ratio pitch/diameter ratio. corresponding correction coefficients considering given. beneficial relevant practical engineering properties