... The results of both experimental and numerical studies of the resistance reduction from modification of the pressure field around displacement hulls creating fore-aft pressure re-distribution are presented. The fore-aft pressure redistribution is achieved by hull surface orifices which...

... This study presents the concept of a small autonomous catamaran for operation in remote offshore areas for long duration. The relative linear motion between the hulls and the main deck is converted into a rotational motion of an electrical generator to harvest wave energy for supplemental...

... Ever since Titanic was found in 1985 and it was discovered that the ship did not sink intact there have been a number of theories as how the ship’s hull failed. This paper will discuss several of these theories and discuss the reasons for the necessity of superseding them as new information...

.... Free-running models tested in open water can overcome some of these limitations. This paper presents the detailed design of a free-running model for open water experimental application. The model development includes hull construction, design and integration of a propulsion & steering system, data...

...SNAME Maritime Convention 2022 26-29 September, Houston, TX Copyright © 2022 Society of Naval Architects and Marine Engineers (SNAME) www.sname.org Hydrodynamics of Semi-Submersible Hull Model at Variable Submergences and Froude Numbers Konstantin I. Matveev1 (V), Li P. Sung2 (AM) 1. School...

..., this enables the impact probability to be mapped onto the hull. Vulnerable areas of the hull are identified by showing only impacts that are hard enough to exceed the local structural capability. Operational guidance to mitigate the risks is obtained by repeating this at different speeds and headings. Applying...

... tank history gauge fiber bragg grating upstream oil & gas medium-sized semi-smc 2022 hull houston full-scale ship piezoelectric sensor strut SNAME Maritime Convention 2022 26-29 September, Houston, TX Copyright © 2022 Society of Naval Architects and Marine Engineers (SNAME...

... to remove the tumblehome from the design. These changes in the design of tumblehome ships are discussed in this paper. INTRODUCTION What is tumblehome in a ship design? Let us examine Fig. 1 (Ellis, 1997) which shows: a flared hull; a wall-sided hull; and, a tumblehome hull design. In this figure one can...

... feasible solution to close that gap must be cost-effective. This study develops a concept design for the conversion of a commercially available working boat to a minelayer in the form of an affordable, modular and rapidly scalable “bolt-on” system with flexible implementation to a variety of parent hulls...

... hull iceberg sinking providence upstream oil & gas olympic lifeboat artificial intelligence shipbuilding design history aftermath robert roddy new york californian propeller forensic smc2021 titanic testimony stern section SNAME Maritime Convention 2021 27 29 October...

... Hull Design engineers and hydrodynamicists need high fidelity tools to help understand the performance of the vessels they are designing. In the context of Computational Fluid Dynamics (CFD), it is often assumed these numerical simulations will take a long time to run and are cumbersome...

... with contract, finance, and engineering management of the MSV(L) Program. A contract to develop the detailed design and build a series of vessels was awarded in September 2017. Launch of the initial vessel is planned during the fourth quarter of 2021. payload hull operation msv us government support...

... reservoir characterization simulation prediction experimental result jacob woeste hull geometry propeller aegir virtual event calm water wave condition head sea smc2020 wake fraction upstream oil & gas resistance coefficient rotation rate body motion Accurate...

... modeling & simulation ship wave resistance reduction configuration artificial intelligence lateral hull william lambert transverse wave longitudinal virtual event interference fleet formation smc2020 wave resistance resistance wave spectrum wave pattern This paper...

... is designed with a planing hull form to operate in a range of speed to length ratio not exceeding 3. The main objective of this research is to estimate its calm water powering performance through semiempirical methods. A comparison of resistance to speed curve with a round bilge semi-displacement hull...

... is presented here by extending a potential flow seakeeping model to include hull maneuvering force coefficients, which include viscous effects. The present method includes incident wave excitation terms arising from hull maneuvering force coefficients. These predicted forces are then used to determine ship...

...1 Effects of Hull and Control Surface Roughness on Ship Maneuvering Dr. John C. Daidola1, P.E. (FL) 1AENY Naval Architects and Marine Engineers The effects of hull roughness on ship maneuvering characteristics are investigated. The hydrodynamic derivatives in the equations of motion for surface...

... captive model tests to derive the hydrodynamic derivatives in a really cost effective way. These derivatives are being inserted in a simulation maneuvering model for the prediction of the maneuvering performance. It should be noted that the hull, which is subjected to the virtual captive model tests...

... Significant frictional drag reduction of ships and boats can be achieved by forming extended air cavities underneath hulls. However, the air cavity benefit may degrade or disappear in off-design loadings and speed regimes, as well as in rough seas. To make this technology more viable, means...

... The design of high-speed vessels is always a challenging job for naval architects. The semi-empirical and analytic methods widely used today are based on gross hull parameters, limiting their applicability and accuracy. These methods do not provide details of the flow around the hull...