Numerical Simulation of Unsteady Viscous Nonlinear Waves Using Moving Grid System Fitted on a Free Surface
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- HINATSU Munehiko
- Ship Research Institute
Bibliographic Information
- Other Title
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- Numerical Simulation of Unsteady Viscou
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Abstract
This paper presents a method to simulate unsteady viscous nonlinear waves by numerically solving Navier-Stokes equations. The equations were solved by a finite difference method with a free surface fitted coordinate system, which is regrided every time step. The time derivatives were approximated by a time splitting fractional step method. Second order central differences were used to discretize the viscous and pressure terms while the convection terms were discretized by a QUICK scheme. A cell centered stencil was used. In order to check the accuracy of the present scheme, the following test problems were solved numerically: (1) standing wave problems, (2) the propagation and reflection of a soliton, (3) piston-type wavemaker simulations, and (4) the wave generation by a moving topography. The computational results are compared to analytical results when available and good agreements were obtained. The present scheme was thus validated.
Journal
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- Journal of the Kansai Society of Naval Architects, Japan
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Journal of the Kansai Society of Naval Architects, Japan 217 (0), 1-11, 1992
The Japan Society of Naval Architects and Ocean Engineers
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Keywords
Details 詳細情報について
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- CRID
- 1390282679473197440
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- NII Article ID
- 110003871898
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- NII Book ID
- AN00349587
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- ISSN
- 2433104X
- 03899101
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- NDL BIB ID
- 3765561
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- CiNii Articles
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- Abstract License Flag
- Disallowed