Entwicklung eines allgemeinen Panelverfahrens zur Behandlung der Potentialstroemung in der Schiffhydrodynamik

A potential-based panel method is developed for the treatment of the free surface flow of a ship. The boundary conditions on the free surface are linearised about the successive approximated solutions of the velocity potential and the wave elevation. The partial differentials of the velocity potential are approximated by finite difference procedures. The wetted surface of the ship and the free surface are updated after every iteration. The modelling of the transom stern is based on the assumption that tle flow leaves the edge of the transom tangentially. Wenn arranging the hull panels the transom is considered to be open. The computed results in the near field of the ship are plausible. But the wave systems in outer field and behind the ship fase away too fast, comparing with the results of the existing computer code and the observations. This is obviously due to the severe effect of the numerical damping of the difference approximations for the partial differentials of the velocity potential. (orig.)Available from TIB Hannover: RN 3150(1611)+a / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekSIGLEBundesministerium fuer Bildung, Wissenschaft, Forschung und Technologie, Bonn (Germany)DEGerman