4. A Prediction Method for Ship Viscous Resistance by Boundary Layer Theory

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概要

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• A simple integral-type boundary-layer calculation method is applied to the prediction of ship viscous resistance. A calculation method for the vortex resistance due to the stern bilge vortex is evaluated from the energy-loss concept using the crossflow quantities in the stern boundary layer. The ship viscous resistance thus consists both of the streamwise momentum loss and of the cross flow energy loss. A regression analysis of the resistance shows a fairly good agreement between the theory and experiments. The local development of the viscous resistance components near stern is also discussed in terms of the boundary layer quantities. The potential-flow quantities like pressure gradient and streamline convergence are related to the boundary layer development and then the viscous resistance. The present method can be applied to ship stern form improvement for reducing viscous resistance.

• 社団法人日本船舶海洋工学会の論文

著者

• HIMENO Yoji

  University of Osaka Prefecture

• Himeno Yoji

  University Of Osaka Prefecture College Of Engineering

• ISHII Tatsushi

  University of Osaka Prefecture

関連論文

• 6. Study on Roll Characteristics of Small Fishing Vessel
• 1. First Order Approximation to Three-Dimensional Turbulent Boundary Layer and Its Application to Model-Ship Correlation
• 4. A Prediction Method for Ship Viscous Resistance by Boundary Layer Theory

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