A Study on Numerical Analysis for 2 Dimensional Circulation Model with Effect of Nonlinear Term

J. Ocean Eng. Technol. 1990;4(1):49-54.

비선형항의 효과를 고려한 2차원 유동모형에 대한 수치해석연구

김희종,김진후,이상화

동아대학교 토목공학과,동아대학교 해양공학과,동아대학교 토목공학과

Keywords: Circulation Model, Explicit Method, Bottom Friction Coeff, Eddy Viscosity Coeff, Open Boundary, Nonlinear Term

핵심용어: 유동모델, 양해법, 해저마찰계수, 와동점성계수, 개방경계, 비선형항

Abstract

This study describes the application of a two dimensional depth integrated numerical model. The explict scheme of finite difference method had been applied to the model of circulation. The nonlinear terms showed a slight difference for the variations of water elevation when calculated grid was small. They were also found to be minor when calculated grid size was increased. For verification of the numerical model, numerical results were compared with predicted values and field data. In the model, the effect of nonlinear advective terms proved not to be significant.