# 디지털 전산모사를 위한 방법론 비교분석

• 이덕균 (대구대학교 기초교육대학) ;
• 박지은 (대구대학교 기초교육대학)
• Accepted : 2015.09.20
• Published : 2015.09.28
• 58 10

#### Abstract

Computer simulation plays an important role for a theoretical foundation in convergence technology and the interpolation is to know the unknown values from known values on grid points. Therefore it is an important problem to select an interpolation method for digital simulation. The aim of this paper is to compare analysis of interpolation methods for digital simulation. we test six different interpolation methods namely: Quartic-Lagrangian, Cubic Spline, Fourier, Hermit, PWENO and SL-WENO. Through digital simulation of a linear advection equation, we analyse pros and cons for each method. In order to compare performance, we introduce accuracy computing and Error functions. The accuracy computing is used well-known $L^1-norm$ and the Error functions are dispersion function, dissipation function and total error function. High-order methods well apply to computer simulation, unfortunately, side-effects (Oscillation) happen.

#### Keywords

Computer simulation;Backward semi-Lagrangian method;Interpolation;Convergence technology;WENO;PWENO;SL-WENO

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