수치 파동 수조를 이용한 부유체의 문풀 (Moon Pool) 유동해석

• Published in: 大韓造船學會 論文集 Vol. 48; no. 2; pp. 107 - 112
• Main Authors: 구원철(Weon-Cheol Koo), 이경록(Kyoung-Rok Lee)
• Format: Journal Article
• Language: Korean
• Published: 대한조선학회 2011
• Subjects: 조선공학; Forced heave motion(강제상하동요); Numerical wave tank(수치 파동 수조); Boundary element method(경계 요소법); Moon pool(문풀)
• ISSN: 1225-1143; 2287-7355

The aim of this study is to analyze the hydrodynamic properties of a 2D floating body with moon pool using a 2D fully nonlinear Numerical Wave Tank(NWT). This NWT was developed based on the Boundary Element Method(BEM) with potential theory and fully nonlinear free surface boundary conditions. Free surface elevations in the moon pool were calculated in the time domain for various frequencies of forced body motions. The added-mass and damping coefficients of the heaving body were also obtained. The present numerical results were compared with the analytic and experimental results and their accuracy was verified.