... video images and the fast Fourier transform (FFT) results of the thrust. The ventilation effects with respect to submergence depths and advance coefficients on propulsion performance were investigated. Also, the shaft excitation force was analyzed, and the thrust eccentricity was calculated...

... boat trajectory application avoidance maneuver thrust SNAME Maritime Convention 2022 26-29 September, Houston, TX Copyright © 2022 Society of Naval Architects and Marine Engineers (SNAME) www.sname.org Modeling of Autonomous Hydrofoil Craft Avoiding Moving Obstacles Konstantin I. Matveev (V...

... of the B-spline control points being the parameters to be optimized for maximum propeller efficiency, for given effective wake and propeller thrust. The performance of the propeller within the optimization scheme is assessed by a vortex-lattice method (VLM). To account fully for the hull/propeller...

... We investigate the feasibility of using Magneto-Hydrodynamics (MHD) to implement a propeller-less propulsion system. The basic principle behind MHD is to use the (Lorentz) force produced by the interaction of electric and magnetic fields to generate thrust on a conducting fluid in motion...

... consumption, reduce greenhouse gas emissions and maintain on time performance. rake vibration fay marine transportation propeller 5-blade propeller excitation coefficient bow propeller propeller design efficiency bearing torque shaft rpm thrust knot blade rate 4-blade propeller ferry...

... tip clearance, pitch at the tip was reduced substantially. The open water efficiency was comparable. monitor propeller forensic analysis knot resistance characteristic efficiency diameter virginia wake factor thrust lbf uss ericsson design speed brackin vane wheel lifting line...

... analysis simulation calculation efficiency model scale rotational speed numerical simulation diameter turbine portion torque coefficient seok design open-water condition open-water efficiency propeller portion full scale dynamometer propeller thrust Design and Performance Analysis...

... profile engine operation configuration software fuel use fuel consumption propeller rpm water property propulsor water type propulsor thrust optimizing vessel propulsive power Understanding and Optimizing Vessel Propulsive Power and Fuel Use Using Duty Cycle Analysis Computations Donald...

... and under waves for in-shore operations, demand a vehicle capable of rapid response to a changing environment by production of the proper time-varying balance of lift and thrust. In these highly dynamic flow fields, standard steady drag and moment curves are not valid models. Also, standard semi-empirical...

... powered submarine resistance control surface surface area hull drag force diameter coefficient assumption requirement propeller competition university tank thrust University of Washington Human Powered Submarine 2013 International Submarine Races #12 Human Powered Submarine Design Report...

... requirement cavitation maximum speed pitch angle cpp inflow propeller thrust ship speed Analysis of Controllable Pitch Propellers for an All-Electric Naval Combatant Devin L. Witta, Michael R. Motleya, Dillon P. Helfersa, Yin L. Younga aDepartment of Naval Architecture and Marine Engineering...

... wave only test comparison turbine slack tendon event model test comparison spectra offshore wind turbine system tlp thrust wind speed Model Test Comparisons of TLP, Spar-buoy and Semi-submersible Floating Offshore Wind Turbine Systems Richard W. Kimball1(AM), Andrew J. Goupee2(V), Alexander...

... at aero-hydrodynamics phenomena. Representative results of our previous work with static platforms are shown here for (i) recovered thrust and lift of scaled models on both solid and water surfaces, (ii) potential flow theory for air jets with inclusion of effects of the water surface deformation...