지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록· 키워드
오류제보하기
Numerical simulations were peiformed for the evaluation of wave and current loads on a fixed cylindrical substructure model for an ocean wind turbine using the ANSYS-CFX package. The numerical wave tank was actualized by specifying the velocity at the inlet and applying momentum loss as a wave damper at the end of the wave tank. The Volume-Of Fluid (VOF) scheme was adopted to capture the air-water interface. An accuracy validation of the numerical wave tank with a truncated vertical circular cylinder was accomplished by comparing the CFD results with Morison's formula, experimental results, and potential flow solutions using the higher-order boundary element method (HOBEM). A parametric study was carried out by alternately varying the length and amplitude of the wave. As a meaningful engineering application, in the present study, three kinds of conditions were considered, i.e., cases with current, waves, and a combination of current and progressive waves, passing through a cylindrical substructure model. It was found that the CFD results showed reasonable agreement with the results of the HOBEM and Morison's formula when only progressive waves were considered. However, when a current was included, CFD gave a smaller load than Morison's formula.
목차
ABSTRACT
1. Introduction
2. High-Order Boundary Element Mthod for the Potential Flow Solution
3. Morison‘s Formula
4. Generation of Numerical Wave Tank
5. Efficiency Validation of Truncated Circular Cylinder in The Numerical Wave Tank
6. Numerical Simulation of Loads on The Fixed Vertical Circular Cylinder
7. Summary
Acknowledgements
References
참고문헌 (11)
참고문헌 신청
1. [학술대회논문] - 부성윤 / 1995 / Weakly Nonlinear Diffraction Due to Vertical Truncated Cylinder in a 3-D Numerical Wave Tank / ISOPE : 19 ~ 25
2. [학술지(정기간행물)] - Boo,S.Y / 2002 / Linear and Nonlinear Irregular Waves and Forces in a Numerical Wave Tank / Ocean Engineering 29 (5) : 475 ~ 493
3. [학술지(정기간행물)] - Choi, Y.R. / 2001 / An Analysis of Second-order Wave Forces on Floating Bodies by using a Higher-order Boundary Element Method / Ocean Eng 13 (5) : 117 ~ 138
4. [학술대회논문] - Dong, C.M / 2001 / 2-Dimensional Wave Tank in Viscous Fluid / Proceedings of the 11th International Offshore and Polar Engineering Conference
5. [단행본] - Guenter, C / 1988 / Offshore Structures Engineering / Springer-Verlag Berlin Heideiberg
2. [학술지(정기간행물)] - Boo,S.Y / 2002 / Linear and Nonlinear Irregular Waves and Forces in a Numerical Wave Tank / Ocean Engineering 29 (5) : 475 ~ 493
3. [학술지(정기간행물)] - Choi, Y.R. / 2001 / An Analysis of Second-order Wave Forces on Floating Bodies by using a Higher-order Boundary Element Method / Ocean Eng 13 (5) : 117 ~ 138
4. [학술대회논문] - Dong, C.M / 2001 / 2-Dimensional Wave Tank in Viscous Fluid / Proceedings of the 11th International Offshore and Polar Engineering Conference
5. [단행본] - Guenter, C / 1988 / Offshore Structures Engineering / Springer-Verlag Berlin Heideiberg
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UCI(KEPA) : I410-ECN-0101-2012-559-004502597