B 스플라인 고차 패널법을 적용한 부유체 운동해석

• Published in: Han-guk haeyang gonghak hoeji (Online) Vol. 22; no. 5; pp. 25 - 30
• Main Authors: 안병권(BYUNG-KWON AHN), 류재문(JAE-MOON LEW), 이현엽(HYUN-YUP LEE), 이창섭(CHANG-SUP LEE)
• Format: Journal Article
• Language: Korean
• Published: 한국해양공학회 2008
• Subjects: 해양공학; Added mass coefficient 부가질량계수; B spline high order panel method B 스플라인 고차 패널법; Very large floating structure 초대형 부유식 구조물; Damping coefficient 감쇠계수; Irregular frequency 특이 주파수; B
• ISSN: 1225-0767; 2287-6715

A B-spline based high order panel method was developed for the motion of bodies in an ideal fluid, either of infinite extent or with a free boundarysurface. In this method, both the geometry and the potential are represented by the B-spline, which guarantees more accurate results than most potential based low order methods. In the present work, we applied this B-spline based high order method to the radiation problem of floating bodies. The boundary condition on the free surface was satisfied by adopting a Kelvin-type Green function and irregular frequencies were removed by placing additional control points on the free surface surrounding the body. The numerical results were validated by comparison with existing numerical and experimental results.