عباس دشتی منش

Current paper presents a mathematical model based on 2D-asymmetric wedge water entry to modelheave and pitch motions of planing hulls at non-zero heel angles. Vertical and horizontal forces as well asheeling moment due to asymmetric water entry are computed using momentum theory in conjunctionwith added mass of impact velocity in vertical and horizontal directions. The proposed model is ableto compute sway and yaw forces, roll moment, as well as heave and pitch motions in calm water andregular waves. Validity of the proposed model is verified by comparing the results against existing exper-imental data in both symmetric and asymmetric conditions. Ultimately, different parametric studies areconducted to examine the effects of non-zero heel angle on dynamic vertical motions. The resulting swayand yaw forces due to asymmetric motion are also derived and effects of heel angle on these side forcesare investigated.