Maryland's Defense Patent Database

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Numerical modeling of nonlinear ship-wave interactions

Patent image
NSWCCD

The hydrodynamics of a seagoing vessel are numerically modeled through the present invention's new calculative methodology, which uniquely combines vessel boundary characteristics and pseudo-spectral environmental characteristics. Solutions are obtained through mutual transformations between the vessel boundary's irregular grid and the environment's regular pseudo-spectral grid. The pressure at the vessel boundary, an important component of the vessel boundary itself, can be determined via either (i) finite element analysis (which has a Cartesian framework) or (ii) the present invention's new vessel normal vector analysis (which has a non-Cartesian framework); the latter approach avoids the singularity problem that generally besets hydrodynamics-related mathematics. Typical inventive practice implements a computer processing unit and succeeds in finding superior solutions in shorter CPU durations.

Inventors: 
Lin, Ray-qing; Kuang, Weijia
Patent Number: 
Technical domain: 
IT and Software
FIle Date: 
2006-09-01
Grant Date: 
2010-06-08
Grant time: 
1,376 days
Grant time percentile rank: 
25
Claim count percentile rank: 
3
Citations percentile rank: 
1
'Cited by' percentile rank: 
1
Assignee: 
US NAVY