8. Ship Viscous Wake and Resistance in Waves

スポンサーリンク

概要

• 論文の詳細を見る

• Three-dimensional unsteady boundary layer theory is applied to the problem of ship viscous wake decrease and resistance increase in waves. The laminar boundary layer equation is expanded with the assumption of small oscillation amplitude and high frequency, so that the steady part of the second order solutions thus implies the effect of the oscillatory flow. The wake decreases due to the ship pitching motion and due to the incident wave are calculated. Calculated results show a qualitative agreement with Nakamura and Naito's experiments. The calculation also gives an estimation of the viscous resistance increase in waves, which is, however, quite small compared to the wave resistance increase in waves. Although the present analysis is based on the laminar boundary layer theory, it represents the basic mechanism of the viscous effects of the ship hydrodynamic forces in waves.

• 社団法人日本船舶海洋工学会の論文

著者

• Chang Huai-xin

  University Of Osaka Prefecture

• Himeno Yoji

  College Of Engineering University Of Osaka Prefecture

• Himeno Yoji

  College Of Engineering Univ. Of Osaka Pref

関連論文

• 8. Ship Viscous Wake and Resistance in Waves
• Wave Making Resistance in Viscous Fluid
• 1. On the Viscous Flow past Blunt Bodies
• 2. On Viscous Flow about Bluff Body at High Reynolds Number

スポンサーリンク