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论文类型：会议论文

发表时间：2010-06-20

收录刊物：EI、Scopus

卷号：1

页面范围：1162-1166

摘要：Laboratory experimental study was carried out to measure the flow velocity field under different kinds of floe models with smooth or rough bottom using Particle Image Velocimetry (PIV) technology. The disturbance depth z' under the floe model was found to increase linearly with the geometric roughness of floe underside, namely the obliquity 6 of serrate fluctuations on the model bottom. Profile analyses revealed that the roughness length Z0, determined from the logarithmical profile, also increased linearly with 6. Influences of floe draft and initial flow velocity on z and Z0 could be both ignored. Copyright ? 2010 by The International Society of Offshore and Polar Engineers (ISOPE).