Variation Characteristics of Hydrodynamic Coefficients of Two-Dimensional Rectangular Moonpool Resonance under Sway Motion

The phenomenon of sudden changes in hydrodynamic coefficients cannot be neglected when the resonance of a two-dimensional rectangular moonpool occurs; however, it may not be meaningful to discuss the detailed values of hydrodynamic coefficients when the resonance occurs. The analytical solution of t...

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Bibliographic Details
Published in:Sustainability 2022-12, Vol.14 (23), p.15952
Main Authors: Zhang, Zhouhao, Zhang, Hongsheng, Wang, Yuxin, Zhang, Yu
Format: Article
Language:English
Subjects:
Coefficient of variation
Damping
Design and construction
Drilling platforms
Exact solutions
Flow theory
Hydrodynamic coefficients
Hydrodynamics
Hydrofoil boats
Mechanical properties
Potential flow
Radiation
Resonance
Resonant frequencies
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Summary:The phenomenon of sudden changes in hydrodynamic coefficients cannot be neglected when the resonance of a two-dimensional rectangular moonpool occurs; however, it may not be meaningful to discuss the detailed values of hydrodynamic coefficients when the resonance occurs. The analytical solution of the hydrodynamic coefficients of a two-dimensional rectangular moonpool under sway motion derived based on the linear potential flow theory is first improved. The improved analytical results and the results with the far-field method are then compared and verified. The results show that the hydrodynamic coefficients of a two-dimensional rectangular moonpool under sway motion change suddenly at the second resonant frequency, which was not found in the original analytical solution of damping coefficient.
ISSN:2071-1050
2071-1050
DOI:10.3390/su142315952