21 آذر 1403
سجاد حاجي زاده

سجاد حاجی زاده

مرتبه علمی: استادیار
نشانی: دانشکده مهندسی - گروه مهندسی دریا
تحصیلات: دکترای تخصصی / مهندسی دریا
تلفن: 07731222040
دانشکده: دانشکده مهندسی

مشخصات پژوهش

عنوان RANSE SIMULATION OF STEPPED PLANING HULL HYDRODYNAMIC PERFORMANCE IN CALM WATER AND WAVES
نوع پژوهش مقالات در نشریات
کلیدواژه‌ها
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مجله Transactions of the Royal Institution of Naval Architects Part B: InternationalJournal of Small Craft Technology
شناسه DOI
پژوهشگران سجاد حاجی زاده (نفر اول) ، محمد رضا فتحی کازرونی (نفر دوم) ، ابوالفضل محمدی (نفر سوم)

چکیده

Stepped-planing hull is the most favorite hull form of most designers in high speed craft market. Despite their widespread use globally, there is no general method for calculation of the resistance in calm water and motions in wave of stepped planing hulls. In this paper, numerical approach is utilized to study the hydrodynamics of stepped planing hull in calm water and wave. Reynolds Averaged Navier Stokes (RANS) equations and nonlinear free surface boundary conditions are discretized by overset grid finite volume scheme. VOF model is applied to capture the free surface between air and water. The total resistance of the planing hull in calm water and responses in vertical plane is validated against published experimental results which reveals acceptable precision. According to the results, the utilized numerical approach seems promising in hydrodynamic design of stepped planing hulls. Results show good agreement to published experimental data and VOF scheme combined by overset grid approach capture the free surface well.