Nonlinear ship waves and computational fluid dynamics
| Autor: | Yohei Sato, Hideaki Miyata, Hideo Orihara |
|---|---|
| Rok vydání: | 2014 |
| Předmět: |
Shock wave
Engineering General Physics and Astronomy Review computational fluid dynamics Response amplitude operator Computational fluid dynamics Motion Pressure Code (cryptography) Computer Simulation Ships business.industry free-surface modelling Process (computing) nonlinear waves General Medicine naval hydrodynamics Ship waves Naval architecture Nonlinear system Nonlinear Dynamics Hydrodynamics General Agricultural and Biological Sciences business ship hull-form Marine engineering |
| Zdroj: | Proceedings of the Japan Academy. Series B, Physical and Biological Sciences |
| ISSN: | 1349-2896 0386-2208 |
| DOI: | 10.2183/pjab.90.278 |
| Popis: | Research works undertaken in the first author's laboratory at the University of Tokyo over the past 30 years are highlighted. Finding of the occurrence of nonlinear waves (named Free-Surface Shock Waves) in the vicinity of a ship advancing at constant speed provided the start-line for the progress of innovative technologies in the ship hull-form design. Based on these findings, a multitude of the Computational Fluid Dynamic (CFD) techniques have been developed over this period, and are highlighted in this paper. The TUMMAC code has been developed for wave problems, based on a rectangular grid system, while the WISDAM code treats both wave and viscous flow problems in the framework of a boundary-fitted grid system. These two techniques are able to cope with almost all fluid dynamical problems relating to ships, including the resistance, ship's motion and ride-comfort issues. Consequently, the two codes have contributed significantly to the progress in the technology of ship design, and now form an integral part of the ship-designing process. |
| Databáze: | OpenAIRE |
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