E111 大型船舶船底の気泡含有乱流境界層の超音波ドップラー計測(OS-10 混相流動(1),一般講演,地球温暖化防止と動力エネルギー技術)

書誌事項

タイトル別名
  • E111 Ultrasonic Doppler Measurement of Bubble-Containing Turbulent Boundary Layer Beneath a Large Ship

抄録

Friction drag accounts for 80 % of the total drag for large ships, and hence microbubble drag reduction is expected as one of the most feasible ways to reduce it because of less environmental impact. The demonstration experiment using 127m-ship is carried out and its turbulent boundary layer is measured by UVP for the first time. This report mainly describes the measurement method of seawater velocity profiles beneath the ship and some typical results on the influences of bubbles on their statistic values.

収録刊行物

詳細情報 詳細情報について

問題の指摘

ページトップへ