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Keywords: thrust
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Proceedings Papers

Paper presented at the SNAME 26th American Towing Tank Conference, July 23–24, 2001
Paper Number: SNAME-ATTC-2001-007
..., and variations in trailing edge shape due to manufacturing problems. The analysis included detailed trailing edge measurements, an open water test. and panel method computations. united states government geometry coefficient thrust trailing edge inspection propeller edge detail model scale inch...
Proceedings Papers

Paper presented at the SNAME 25th American Towing Tank Conference, October 24–25, 1998
Paper Number: SNAME-ATTC-1998-016
... correlation allowance risk management viscosity torque diameter shaft horsepower prediction variation prediction procedure coefficient thrust propeller uthrust GLOBAL UNCERTAINTY ANALYSIS OF FULL-SCALE SUBMARINE PROPULSION PREDICTIONS USING TOW-TANK MODEL TESTS M.R. Pfeifer, J.R. Lee, F...
Proceedings Papers

Paper presented at the SNAME 25th American Towing Tank Conference, October 24–25, 1998
Paper Number: SNAME-ATTC-1998-014
... An experimental study to measure developed thrust from a rigid foil subjected to unsteady oscillatory motion was conducted in the towing tank at Memorial University of Newfoundland. The foil tested had a rectangular planform, NACA0019 section, span of 400 mm, and aspect ratio 6...
Proceedings Papers

Paper presented at the SNAME 24th American Towing Tank Conference, November 2–3, 1995
Paper Number: SNAME-ATTC-1995-004
... geometry stricker multiphase pump npsh inlet efficiency cavitate diameter thrust artificial lift system efficiency ingestion figure 1 model and full-scale waterjet propulsor CAVITATION IN MODEL AND FULL-SCALE WATERJET PROPULSORS by John L. Allison, Band, Lavis & Associates, Inc. John G...
Proceedings Papers

Paper presented at the SNAME 24th American Towing Tank Conference, November 2–3, 1995
Paper Number: SNAME-ATTC-1995-023
... theoretically that net steady thrust, or drag, can result from nonlinear filtering in the products of unsteady body surface displacement and pressure distributions involved in the force itegrals. The efficiency of such propulsion is necessarily 100 percent since no losses occur in an inviscid fluid. Further...
Proceedings Papers

Paper presented at the SNAME 23rd American Towing Tank Conference, June 11–12, 1992
Paper Number: SNAME-ATTC-1992-014
... An advanced high performance waterjet propulsor was developed as part of the Marine Corps Surface Mobility technology development effort. Design optimization, performance estimating, and hydrodynamic design procedures are described for a propulsion unit required to meet specified thrust, power...
Proceedings Papers

Paper presented at the SNAME 23rd American Towing Tank Conference, June 11–12, 1992
Paper Number: SNAME-ATTC-1992-042
... The model to full scale correlation in resistance and powering between two scale model USMC waterjet propelled high speed amphibious vehicles is shown. The estimated required thrust for a 0.295 scale model of the High Water Speed Technology Demonstrator and a 0.245 scale model of the Propulsion...
Proceedings Papers

Paper presented at the SNAME 22nd American Towing Tank Conference, August 8–11, 1989
Paper Number: SNAME-ATTC-1989-041
... and analysis evaluating the validity of the claims. propeller slipstream thrust swirl shaft thrust educational technology efficiency type device axis hub computer based training figure arrangement rotation coefficient performance assessment cap fin type device shaft torque pbcf type...
Proceedings Papers

Paper presented at the SNAME 22nd American Towing Tank Conference, August 8–11, 1989
Paper Number: SNAME-ATTC-1989-037
... with theoretical results from a linearised mathematical model. High propulsive efficiencies around 0.7 were obtained with this model propeller. In the zero speed condition, the propulsive thrust coefficient (CTb) decreases as the oscillating frequency increases. Investigations were made into the speed of advance...
Proceedings Papers

Paper presented at the SNAME 22nd American Towing Tank Conference, August 8–11, 1989
Paper Number: SNAME-ATTC-1989-036
.../outboard torque ratio. Possible explanations for this phenomenon are given. prediction slipstream extrapolation propeller slipstream experiment coefficient torque outboard propeller shaft revolution thrust arc constraint ship correlation allowance discrepancy correlation experiment...
Proceedings Papers

Paper presented at the SNAME 22nd American Towing Tank Conference, August 8–11, 1989
Paper Number: SNAME-ATTC-1989-039
... and effective inflows. It is shown that most features of the interaction can be explained as a direct consequence of the propeller loading resulting from its operation with a three-dimensional nonuniform inflow. inflow experiment thrust propeller loading contour university propeller-hull interaction...

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