Nowadays, application of high speed crafts with large tonnage is of our country's essences. In order to gain high speed, new multi hull crafts are traditional. A hull form having been used recently in frigates is the Trimaran. Trimaran hull form and motion have been extensively studied due to the development of numerical and analytical methods as well as the exploitation of experimental setup. ...

A tunneled planing craft is a high-speed boat with two tunnels over the hull bottom that are designed to improve vessel’s performance. Hydrodynamic performance of hulls in calm-water well-known, however, current information on wave conditions limited. In this study, different degrees freedom heave and pitch motions studied regular waves by using computational fluid dynamics (CFD) method based U...

A numerical re-formulation of Marou’s integral for slender body analysis of calm-water planing hydrodynamics with gravity wave-making is developed. Numerical computations are performed first for a flat triangular planing plate. The triangular planing plate has been the subject of previous work with the base Maruo theory. The comparisons are supportive of the formulation for performing wave lift...

Abstract The extreme motions created a negative effect on planing hull. Otherwise, interceptors enable the improvement of hydrodynamic characteristics highspeed craft. total drag ship can be divided into two components: pressure and shear forces. This project specifically aims to predict component based CFD simulation with without an interceptor resistance components. volume fluid is used in co...

Abstract Designing a high-speed craft for better seakeeping in waves can contribute significantly to higher safety and human comfort. Early the design process, mathematical models such as 2D+T method are commonly used, while high-fidelity computational fluid dynamics (CFD) experimental used later process. Some of limitations that they not fast enough be ship’s system real-time monitoring or dev...