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A Note on the Proper Size of a Finite Element for Analysis of Harbor Resonance Problems  

정원무 (한국해양연구원 연안·항만공학연구본부)
박우선 (한국해양연구원 연안·항만공학연구본부)
Publication Information
Journal of Korean Society of Coastal and Ocean Engineers / v.14, no.1, 2002 , pp. 86-93 More about this Journal
Abstract
In this study, numerical experiments were performed to decide the proper size off finite element for the analysis of harbor resonance problems. Various sizes of finite elements were considered from 1/3 to 1/60 of wavelength to model a fully opened rectangular harbor. Through the numerical results, the proper number of finite elements per wavelength were revealed to be nine within two percents errors allowed in resonant period and amplification ratio, while twelve within one percent error. It was fecund that error rates of resonant periods decrease linearly, while those of amplification ratio decrease with oscillating form as the size of an element decreases. The error of amplification ratio increases more rapidly than that of resonant period in case of element numbers below nine.
Keywords
harbor resonance; numerical experiment; finite element; resonant period; amplification ratio; error rate;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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