... Recent research in the possible applications of the vortex propulsor – Vor-Prop - have included open cylinder model, a shafted coaming contained compact model and a double counter rotational internal turbine model. CFD analysis indicates efficiencies in applications including ship propulsion...

... on the design of propellers cannot always be determined by propulsive coefficients measured at model tests and needs a detailed CFD analysis. united states government simulation option influence push-pull contra-rotating propulsor marine transportation propulsor rotation efficiency ran solver...

... in propeller design. cavitation requirement variation circulation propeller cavitation inception diagram notation propulsion united states government marine transportation noise vortex cavitation noise propeller camber wakefield thickness efficiency Propeller and Shafting Symposium...

... In recent years, ship owners have come to seek a more fuel-efficient ship operation at lower cost. In addition, since the start of the EEDI regulations, the shipyard has begun to focus on the further development of high performance ships. In such a background, many ship designers...

... and optimization approach to vessel machinery design. constraint efficiency machinery installation cavitation tradeoff optimization problem side cavitation manual design requirement propeller artificial intelligence pressure side cavitation equipment selection propeller design operational...

..., propeller revolution and fuel oil consumption, ship sea trial data and propeller performance, can be evaluated ship performance during ship in service. The analyzed output data can be produced as increasing of ship resistance (delta Rw) versus ship performance efficiency, fuel oil consumption (ton per day...

... geometry revolution efficiency ship condition load fluctuation fluid dynamics calculation model scale wake field propeller full scale reservoir simulation fluctuation blade load fluctuation water performance transient blade load determination Transient blade load determination in behind...

... In this paper the focus is not regarding any one particular type of vessel, but is to call attention to the various vessel and propulsor features which affect the propulsive efficiency of most any vessel. There is also some consideration of the various propulsor types and their effectiveness...

... data in an effort to quantify the difference in propulsive efficiency. These tests included a series of open-water propeller tests conducted in Webb Institute s Robinson Taylor Model Basin and a series of ship standardization trials conducted aboard a Tripp 30 Sail Boat for a number of pitch...

.... Pod propulsion offers benefits like increased efficiency, better performance, nimble handling, and low noise levels while allowing more people to successfully operate their vessel due to a friendly operator interface. Features of these commercial pod systems that also benefit builders include ease...

... were made for each pair of propellers tested to determine the level of manufacturing consistency as well as the effects of cupping. Test data for peak open-water efficiency and four-quadrant performance were compared to B-Series propeller data to determine whether the B-Series can be used confidently...

... As surface ships are required to achieve higher speeds to meet their mission requirements, many still have intermediate speed endurance requirements that necessitate higher efficiency than some high-speed propulsor options con provide. This effort looks into developing propellers with blade...

... accurately be assessed by model tests. production control open propeller experiment application propeller production monitoring efficiency model experiment actuator disk nozzle scale effect ducted propeller system coefficient oosterveld reynolds number thrust reservoir surveillance...

... efficiency azimuth condition different azimuth condition hub angle Study of Puller Podded Propulsors with Tapered Hub Propellers in Straight Course and Azimuthing Conditions Mohammed Fakhrul Islam Faculty of Engineering and Applied Science, Memorial University ofNewfoundland St. John's, NL, AIB 3X5...

.... efficiency prediction pitch change propeller blade deflection cavitation performance rigid propeller uniform flow circulation distribution circulation wake screen mean load flexible propeller geometry propeller geometry flow field deflection composite propeller no-load geometry Design...

... for the case of the 25-knot design speed (Fn = 0.6) of the baseline ship hull. station 7 inlet station 3 marine transportation efficiency diameter quantity athena upstream oil & gas station 6 resistance carderock division flow rate system power waterjet unit plane gulf coast waterjet...

... renewable energy oscillation amplitude infinity upper boundary supplementary condition wind turbine estimation wind energy artificial intelligence efficiency axial coefficient propulsor effective thrust assumption inequality non-expansible wake restriction propeller...

... efficiency swirl field quantity radial distribution coefficient lifting line circumferential mean circulation thrust coefficient quantity grid circulation distribution solver propeller blade row contour duct streamtube propulsor Potential propulsors for current...

... propeller efficiency propulsion system efficiency coefficient propulsive coefficient concept design 1 appendage coefficient appendage configuration hydrodynamic system coefficient marine transportation design 1 tractor pod propeller concept design 2 midterm sealift pg-100...

..., the single rotor/stator concept was optimized to maximize efficiency while matching a given design point. The resulting design is predicted to have much improved cavitation performance compared with a design accomplished with older techniques. Other advantages are reduced weight, shorter length, and lower...