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Study of Total and Viscous Resistance for the Wigley Parabolic Ship Form

机译：Wigley抛物型船舶总阻力与粘性阻力研究

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Total resistances of the Wigley parabolic ship model with both free and fixed conditions were measured. Viscous resistances of the same model in the fixed condition were measured by the wake-survey method. The differences between total and viscous resistances for the fixed condition are compared with the residuary resistances and the wave resistance derived by the wave-pattern analysis. The wake-survey measurements were automated with transient-time control between successive tubes, sampling-time control, and simultaneous sampling of pressure and model speed by using a scanivalve and an HP-1000 minicomputer. Correction methods of the total-head readings and the flow velocities in the wake for variations of the model velocity were introduced.

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