Demirel Yigit Kemal, Uzun Dogancan, Zhang Yansheng, Fang Ho-Chun, Day Alexander H, Turan Osman
a Department of Naval Architecture, Ocean and Marine Engineering , University of Strathclyde , Glasgow , UK.
b Lloyd's Register Global Technology Centre , Lloyd's Register , Southampton , UK.
Biofouling. 2017 Nov;33(10):819-834. doi: 10.1080/08927014.2017.1373279. Epub 2017 Oct 5.
Predictions of added resistance and the effective power of ships were made for varying barnacle fouling conditions. A series of towing tests was carried out using flat plates covered with artificial barnacles. The tests were designed to allow the examination of the effects of barnacle height and percentage coverage on the resistance and effective power of ships. The drag coefficients and roughness function values were evaluated for the flat plates. The roughness effects of the fouling conditions on the ships' frictional resistances were predicted. Added resistance diagrams were then plotted using these predictions, and powering penalties for these ships were calculated using the diagrams generated. The results indicate that the effect of barnacle size is significant, since a 10% coverage of barnacles each 5 mm in height caused a similar level of added power requirements to a 50% coverage of barnacles each 1.25 mm in height.
针对不同的藤壶附着情况，对船舶的附加阻力和有效功率进行了预测。使用覆盖有人造藤壶的平板进行了一系列拖曳试验。这些试验旨在研究藤壶高度和覆盖率对船舶阻力和有效功率的影响。对平板的阻力系数和粗糙度函数值进行了评估。预测了污损情况的粗糙度对船舶摩擦阻力的影响。然后利用这些预测结果绘制附加阻力图，并根据生成的图表计算这些船舶的功率损失。结果表明，藤壶尺寸的影响显著，因为每5毫米高的藤壶覆盖率为10%所导致的附加功率需求水平，与每1.25毫米高的藤壶覆盖率为50%所导致的相似。
