fa مطالعه پارامتری توزیع فشار بر روی گوه به هنگام ورود به آب به روش تست مدل هیدروديناميك سازه های ساحلی و فراساحلی Offshore Hydrodynamic مقاله پژوهشي Research Paper Analysis of wedge water entry as a basic problem has wide application. Model testing is a powerful means to deal with the said problem. In this study, a set of water entry tests on wedges of 20, 30 and 40 degrees deadrise angles has been conducted and the pressure distributions are recorded. Free falling method in symmetry conditions are considered in this research. A parametric study on pressure coefficients due to velocity and deadrise angles has been carried out on the wedge. Furthermore, Z-parameter as a non-dimensional factor defined for two individual parameters, time and depth of entry, has been evaluated. Finally, some comparison with numerical methods is presented. The kind of parametric study by means of model test may be regarded as the outcome of this study. Wedge, Impact Velocity, Deadrise Angle, Pressure Distribution, Pressure Coefficient 75 83 http://marine-eng.ir/browse.php?a_code=A-10-1-77&slc_lang=fa&sid=1 hamid zeraatgar حمید زراعتگر hamidz@aut.ac.ir 1003194753284600892 1003194753284600892 Yes Amirkabir University of Technology دانشگاه صنعتی امیرکبیر Ehsan Hassani Chalaksara احسان حسنی چالکسرا 1003194753284600893 1003194753284600893 No Amirkabir University of Technology دانشگاه صنعتی امیرکبیر Reza Yousefnejad رضا یوسف نژاد 1003194753284600894 1003194753284600894 No Amirkabir University of Technology دانشگاه صنعتی امیرکبیر Mohammad javad Javaherian محمد جواد جواهریان 1003194753284600895 1003194753284600895 No Amirkabir University of Technology دانشگاه صنعتی امیرکبیر