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Hydrodynamische Kräfte am schrägfahrenden Schiffsrumpf bei höheren Geschwindigkeiten im tiefen und flachen Wasser
Citation Link: https://doi.org/10.15480/882.963
Publikationstyp
Technical Report
Date Issued
1993
Sprache
German
Author(s)
TORE-DOI
This paper describes a three-dimensional numerical approach for computing the steady potential flow and the hydrodynamical forces acting on ships of small angles of yaw at high speed in deep and shallow water. The disturbed velo city potential is expressed by a distribution of Rankine sources and a semi-infinite dipole sheet. Based on the assumption that the angles of yaw are small, the flow is splitted into asymmetrie one due to the longitudinal motion of the ship and an antisymmetrie one due to the lateral motion; the symmetrie flow and the antisymmetrie flow are then determined respectively. Calculations were performed for a Wigley model 10 m long. Numerical results, i.e.,the wave-making resistance, the steady sinkage and trim, the lateral hydrodynamical force and the yawing moment were presented. The proposed method was justified by the numerical investigation. However, it is necessary to verify and to improve this method further.
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Bericht_Nr.532_Z.Zou_Hydrodynamische_Krfte_am_schegfahrenden_Schiffsrumpf_bei_hheren_Geschwindigkeiten_im_tiefen_und_flachen_Wasser.pdf
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