It is first shown that the two-dimensional linearized ship wave problem can be recast as the sum of a radiation and a diffraction problem for simple harmonic waves. Each problem can be solved by a hybrid element method (HEM) where conventional finite elements are used near the body and analytical solutions are used in the remaining infinite regions (super-elements). Variational principles which incorporate the matching conditions between regular and super-elements as natural conditions are derived Numerical examples are presented. The theoretical aspects for extending the above ideas to a three-dimensional ship wave problem are also described.
A hybrid element method for steady linearized free-surface flows
Eine hybride Elemente Methode fuer stationaere, lineare Stroemungen mit freier Oberflaeche
US Government Reports ; 1-24
1975
24 Seiten
Report
English
AIAA | 1965
|Linearized Unsteady Viscous Turbomachinery Flows Using Hybrid Grids
Online Contents | 2001
|LINEARIZED STEADY MOTION OF PLURI-REACTING MIXTURES
AIAA | 1963
|Linearized Theory for propellers in steady flow
TIBKAT | 1963
|