Observation of traces of micro-bubbles injected in flows of full-scale cement carrier
B113 セメント運搬船を用いたマイクロバブルの実船実験における気泡観測

Toshifumi HORI, Yoshiaki KODAMA, Masahiko MAKINO, Hisanobu KAWASHIMA
2005 Transactions of Visualization Society of Japan  
The reduction of the frictional resistance can be possible by injecting micro bubbles along ship hull. So far, we have carried out many experiments of drag reduction due to micro-bubbles using a small high speed water channel and 50m-long flat bottom ship towed in 400m towing tank, and the drag reduction is surely obtained. Based on these experiments, we carried out a full-scale ship experiment of micro-bubbles as a promising drag reduction device. In the paper, we introduce the outline of the
more » ... xperiment and show the behaviors of injected micro-bubbles observed through totally 12 underwater cameras set around the ship.
doi:10.3154/jvs.25.supplement2_111 fatcat:s2eqlthfnbfkphprusdw3643sa