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Supervised by Ministry of Industry and Information Technology of The People's Republic of China Sponsored by Harbin Institute of Technology Editor-in-chief Yu Zhou ISSNISSN 1005-9113 CNCN 23-1378/T

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Related citation:Hengxu Liu,Wenyang Duan.Introduce Dissipation for Cylindrical Structures with Moon-Pool of Restricted Entrances[J].Journal of Harbin Institute Of Technology(New Series),2015,22(2):56-60.DOI:10.11916/j.issn.1005-9113.2015.02.008.
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Introduce Dissipation for Cylindrical Structures with Moon-Pool of Restricted Entrances
Author NameAffiliation
Hengxu Liu College of Shipbuilding Engineering, Harbin Engineering University, Harbin150001, China 
Wenyang Duan College of Shipbuilding Engineering, Harbin Engineering University, Harbin150001, China 
Abstract:
In order to consider the viscous effect, the introduction of a parametric dissipation and new results are realized by applying the new formulation combining and dynamic conditions over the free-surface with viscous terms. The dispersion equation is then modified by assuming an additional term in the boundary condition at the free-surface and wave-number becomes complex number with a small imaginary part which ensures the decay of wave amplitudes. The comparisons of numerical results and model test measurement on wave elevation at the moon-pool center is obtained both for the peak period and for the amplitude at resonance by choosing an appropriated dissipation coefficient. The results show that the introduce dissipation is not only effective but also reliable to provide realistic predictions.
Key words:  moon-pool  semi-analytical  eigen-function  wave number  dissipation
DOI：10.11916/j.issn.1005-9113.2015.02.008
Clc Number:U661.1
Fund:

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