粘性流体における船の波及び造波抵抗

概要

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A linearized theory for ship waves in a viscous fluid is developed under the assumption of Oseen's equation and appropriate boundary conditions for stresses on the free surface. The wave pattern and the wave resistance at large Froude number are determined by the potential component of the flow field, and the effect of the rotational component is negligible. An inviscid wake model which becomes a suitable representation of the pressure field around a double model can be employed as the abovementioned potential flow. The open wake model and the cusped wake model are examined by means of the linearized free streamline theory for thin struts. Comparisons between measured and computed results are made concerning the wave profile and the wave resistance of a strutlike model. A qualitative but plausible agreement is obtained when the cusped wake model is employed.
社団法人日本船舶海洋工学会の論文