Powering and Motion Predictions of High Speed Sea Lift (HSSL) Ships

• Main Authors: Gorski, Joseph, Miller, Ronald, Carrica, Pablo, Kandasamy, Mani, Stern, Fred
• Format: Report
• Language: English
• Subjects: COMPONENT REPORTS; COMPUTATIONAL TOOLS; COMPUTATIONS; DATA BASES; DESTROYERS; Fluid Mechanics; HABITABILITY; HIGH SPEED SEA LIFT SHIPS; HIGH VELOCITY; HSSL(HIGH SPEED SEA LIFT); Human Factors Engineering & Man Machine System; HYDRODYNAMICS; MANEUVERABILITY; Marine Engineering; NAVAL VESSELS; NAVIER STOKES EQUATIONS; Operations Research; PREDICTIONS; REYNOLDS NUMBER; SYMPOSIA; URANS(UNSTEADY REYNOLDS-AVERAGED NAVIER-STOKES); WATER JETS

High Speed Sea Lift (HSSL) is an important area of in terest for the US Navy. Computational tools are needed to predict the hydrodynamics of these configurations for their proper design and analysis in many areas including: resistance and powering, motions and habitability, loads in service and maneuverability. In paflicular, computational approaches requiring a minimum of empiricism are desired as there is a limited experimental database available for these ship concepts. To achieve this, efforts are underway to apply high-end unsteady Reynolds-Averaged Navier-Stokes (URANS) computations to these configurations in nearly all aspects relevant to their hydrodynamics analysis and design. The present effort concenfrates on ship operations and the use of confrollers for maneuvering and powering. Results are demonstrated for a 30 degree change of heading for a destroyer as well as a waterjet equipped HSSL concept accelerating from rest to the self prnpulsion point for a given speed These predictions are computationally intensive and thus require high pe#ormance computing resources, but they are paving the way for a computational capability to aid in the design and analysis for a new generation of naval ships. The original document contains color images. All DTIC reproductions will be in black and white. Presented at the DoD High Performance Computer Modernization Program (HPCMP) Users Group Conference (USG)(2007): A Bridge to Future Defense held in Pittsburgh, PA on 18-21 June 2007. Published in Proceedings of the DoD High Performance Computer Modernization Program (HPCMP) Users Group Conference (USG), p455-460, June 2007. Publisher: IEEE Computer Society, Conference Publishing Services (CPS). ISBN 0-7695-3088-5 and ISBN 978-0-7695-3088-8. Sponsored in part by the Department of Defense. This article is from ADA488707 Proceedings of the HPCMP Users Group Conference 2007. High Performance Computing Modernization Program: A Bridge to Future Defense held 18-21 June 2007 in Pittsburgh, Pennsylvania