Drag Reduction Experiment by Microbubbles Generated with Chemical Agent on a Bottom Ship Model
In an attempt to reduce skin friction drag, hydrogen bubbles were emitted from the chemical agent near the bow on a 1120mm long model ship at speeds from 1.13m/s to 01.82m/s. The chemical agent released 589ml/g hydrogen and the reaction period was longer than 2min on conditions that flow water speed employed. Increases in speed occurred in the present experiment at all conditions. The maximum increase happened at the maximum speed, which was 1.82m/s, was an increase of 9.6％ compared with no affix. In other words, the maximum total drag reduction reached to 8.8％. The experiment was carried out under conditions of natural turbulence of an open basin, of 110m long, 25m wide, 0.5m deep. The model was towed by a towboat.
Microbubble Drag Reduction Chemical Agent
Hao Ruijian Zhang Guohua Zhao Wenzhong
Handan Particular-Energy and Environment-Protection Research Institute
国际会议
北京
英文
102-106
2007-10-01（万方平台首次上网日期，不代表论文的发表时间）