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수정완경사방정식을 위한 반복기법의 효율성 비교

Efficient Iterative Solvers for Modified Mild Slope Equation

박승민|윤종태
한국해양공학회 (The Korean Society of Ocean Engineers (KSOE))|2006.12|한국해양공학회지 (Journal of Ocean Engineering and Technology)|제20권 제6호|pp. 61-66

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참고문헌

키워드

Wave transformation 파랑변형Modified mild slope equation 수정완경사방정식Generalized conjugate gradient method 일반공액경사법Bi-conjugate gradient method 양공액경사안정법Preconditoning 전처리
주제분류해양공학

초록

Abstract

Two iterative solvers are applied to solve the modified mild slope equation. The elliptic formulation of the governing equation is selected for numerical treatment because it is partly suited for complex wave fields,like those encountered inside harbors. The requirement that the computational model should be capable of dealing with a large problem domain is addressed by implementing and testing two iterative solvers, which are based on the Stabilized Bi-Conjugate Gradient Method (BiCGSTAB) and Generalized Conjugate Gradient Method (GCGM). The characteristics of the solvers are compared, using the results for Berkhoff's shoal test, used widely as a benchmark in coastal modeling. It is shown that the GCGM algorithm has a better convergence rate than BiCGSTAB, and preconditioning of these algorithms gives more than half a reduction of computational cost.1. 서 론

참고문헌 (22)

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  21. "8월 23일 원고 접수" (2006)
  22. "12월 5일 최종 수정본 채택" (2006)

관련 논문AI추천

수정완경사방정식의 타원형 수치모형윤종태한국해양공학회 · 한국해양공학회지2004 · 제18권 제4호경사면을 갖는 월파형 구조물 주위의 비선형성 자유표면류의 수치 시뮬레이션박동인, 박종천, 서성부, 이상범, 홍기용한국해양공학회 · 한국해양공학회지2005 · 제19권 제3호수정 완경사 파랑식에 대한 포물형 근사식 모형서승남, 이종찬한국해안,해양공학회 · 한국해안·해양공학회논문집2006 · 제18권 제4호완경사 방정식의 확장에 관한 연구김재중, 윤항묵, 천제호한국해양공학회 · 한국해양공학회지2004 · 제18권 제2호수정 완경사파랑식과 EFEM 평면파 근사식의 해 비교서승남한국해안,해양공학회 · 한국해안·해양공학회논문집2009 · 제21권 제2호비선형 천수와 쇄파를 고려한 수정완경사방정식의 타원형 수치모형윤종태한국해안,해양공학회 · 한국해안·해양공학회논문집2009 · 제21권 제1호

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