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Proceedings Papers

Paper presented at the SNAME 30th American Towing Tank Conference, October 4, 2017
Paper Number: SNAME-ATTC-2017-0046
... The Naval Postgraduate School has added wave making capability to the existing small tow tank that resides on campus. A new collaborative research effort between the Systems Engineering and Mechanical and Aerospace Engineering Departments is underway that utilizes this new capability. The aim...
Proceedings Papers

Paper presented at the SNAME 30th American Towing Tank Conference, October 4, 2017
Paper Number: SNAME-ATTC-2017-0006
...-farming sector. climate change biofuel efficiency fringe sustainable development sustainability kelp specimen array frame kelp line chemical spill renewable energy immersion spill response research immersion depth longitudinal truss american towing tank conference catenary line...
Proceedings Papers

Paper presented at the SNAME 29th American Towing Tank Conference, August 11–13, 2010
Paper Number: SNAME-ATTC-2010-022
... placed about 7.5 m apart) moving horizontally at full-scale ship speeds in a large water tank. metals & mining carriage experiment air entrainment water surface ship speed light sheet intersection droplet wave maker tank wave board wave tank turbulence steel mining full-scale...
Proceedings Papers

Paper presented at the SNAME 29th American Towing Tank Conference, August 11–13, 2010
Paper Number: SNAME-ATTC-2010-027
... Specifying the type, size, and position of turbulence stimulation devices for towing tank models can be a challenging endeavor. This is particularly true when testing small-scale models and/or models operating at low speeds. Presently, the guidance for test engineers comes primarily in the form...
Proceedings Papers

Paper presented at the SNAME 29th American Towing Tank Conference, August 11–13, 2010
Paper Number: SNAME-ATTC-2010-024
... is discussed and education and research activities are summarized. Further details are recorded in the Appendices that are available as a companion CD to the printed proceedings of this conference. north america government hydromechanic laboratory tank carriage united states government annapolis...
Proceedings Papers

Paper presented at the SNAME 29th American Towing Tank Conference, August 11–13, 2010
Paper Number: SNAME-ATTC-2010-019
... and research, Ohmsett, The National Oil Spill Response Research & Renewable Energy Test Facility, has one of the largest outdoor saltwater tanks in North America and is designed to evaluate the performance of model- and full-scale equipment under realistic environmental conditions. The facility, operated...
Proceedings Papers

Paper presented at the SNAME 29th American Towing Tank Conference, August 11–13, 2010
Paper Number: SNAME-ATTC-2010-017
... are attenuated via a set of “beaches” at the end of the tank opposite the wave flaps. Recent testing of innovative marine hydrokinetic renewable energy technologies include: two marine current to energy conversion devices (hydraulic generators); a Point Source Wave Energy Conversion device (electrical generator...
Proceedings Papers

Paper presented at the SNAME 28th American Towing Tank Conference, August 8–10, 2007
Paper Number: SNAME-ATTC-2007-001
... note, the NAHL is now in much better condition than it was before Isabel. tank foot tank carriage controller flood line united states government control system wavemaker north america government hydromechanic laboratory research project calibration check academy hydromechanic...
Proceedings Papers

Paper presented at the SNAME 28th American Towing Tank Conference, August 8–10, 2007
Paper Number: SNAME-ATTC-2007-006
... In January 2004, Memorial University purchased a stereoscopic Particle Image Velocimetry (PIV) system for making flow measurements. Although the system was potentially very versatile, its primary application was envisioned to be in a towing tank. The system was supplied as a complete package...
Proceedings Papers

Paper presented at the SNAME 28th American Towing Tank Conference, August 8–10, 2007
Paper Number: SNAME-ATTC-2007-010
... The paper presents trials of the iExperiment Towing Tank component of MIT’s iMarine system. A remotely operated laboratory experiment for demonstrating ship resistance was developed and conducted in the MIT Towing Tank in Cambridge, Massachusetts. The lab was run remotely during a classroom...
Proceedings Papers

Paper presented at the SNAME 27th American Towing Tank Conference, August 6–7, 2004
Paper Number: SNAME-ATTC-2004-009
... This paper describes the experimental model designed and built at Institute for Ocean Technology (IOT) to measure the ice performance of the podded propulsors in the ice tank. The model is capable of measuring forces and moments on the overall system, propeller shaft bearing loads and the loads...
Proceedings Papers

Paper presented at the SNAME 27th American Towing Tank Conference, August 6–7, 2004
Paper Number: SNAME-ATTC-2004-016
... principle of suction and density differences. The system presented differs from its counterparts in that it speeds up the gravity-separation in the settling tank into which the oil-water mixture is taken with high rates of flow. An experimental model for this system is constructed and tested...
Proceedings Papers

Paper presented at the SNAME 27th American Towing Tank Conference, August 6–7, 2004
Paper Number: SNAME-ATTC-2004-005
... During the past thirty years, the use of North American towing tanks for the design of high-performance sailing yachts has changed dramatically. These changes are evident in the specific facilities completing these test programs, the quality of test equipment, procedures and results, and the way...
Proceedings Papers

Paper presented at the SNAME 26th American Towing Tank Conference, July 23–24, 2001
Paper Number: SNAME-ATTC-2001-030
... have to be averaged over a representative ensemble of realizations and any result based on one realization is not correct. This was first started on the base of numerical simulations. The model experiment was carried out in the towing tank of the National Research Institute of Fisheries Engineering...
Proceedings Papers

Paper presented at the SNAME 26th American Towing Tank Conference, July 23–24, 2001
Paper Number: SNAME-ATTC-2001-018
... Webb Institute is.one of the few remaining institutions in the United States, devoted to educating students in Naval Architecture and Marine Engineering at the undergraduate level. Within the context of its educational program, a towing tank was constructed to be able to give hands-on experience...
Proceedings Papers

Paper presented at the SNAME 25th American Towing Tank Conference, October 24–25, 1998
Paper Number: SNAME-ATTC-1998-037
... analysis, for several reasons. The form of the manoeuvering equations in ice is different from that in open water. Runs in the ice tank are restricted in length, and the number of runs is restricted by the time and cost to produce an ice sheet. This paper outlines a new methodology for manouvering testing...
Proceedings Papers

Paper presented at the SNAME 25th American Towing Tank Conference, October 24–25, 1998
Paper Number: SNAME-ATTC-1998-035
... system that enabled the test matrix to be completed in a relatively short period of time. rick ashcroft naval architecture ti-4000m notebook computer accelerometer completion university waterproof enclosure conditioning tank notebook computer ju-2000 monitoring marine engineering table...
Proceedings Papers

Paper presented at the SNAME 25th American Towing Tank Conference, October 24–25, 1998
Paper Number: SNAME-ATTC-1998-027
... The Langley seawater tow tank, located on Langley Airbase in Hampton, Virginia, was designed and built by NACA in 1931 for seaplane research and has been in various states of use since then. Since 1983, NUWC has maintained stewardship of the tank and has conducted a large number of tests...
Proceedings Papers

Paper presented at the SNAME 25th American Towing Tank Conference, October 24–25, 1998
Paper Number: SNAME-ATTC-1998-038
... procedure deformation flexural strength increment equation ice committee specimen plastic deformation deflection tank recommended measurement procedure quantity RECOMMENDED MEASUREMENT PROCEDURES FOR MODEL ICE PROPERTIES ITTC Ice Committee: K. Kato (Chairman), K. lzumiyama, S. J. Jones , W...
Proceedings Papers

Paper presented at the SNAME 24th American Towing Tank Conference, November 2–3, 1995
Paper Number: SNAME-ATTC-1995-022
... was assessed. These results were used to reduce uncertainty levels in a repeat test. The analysis for both tests is presented. The aim was to use the results to reduce future uncertainty levels in doing this type of test. risk management experimental error newfoundland tank propeller open water test...

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