National Centre for Advanced Tribology at Southampton (nCATS), Department of Mechanical Engineering, University of Southampton, Southampton, UK.
Marine, Protective and Yacht Coatings, International Paint Ltd., AkzoNobel, Felling, Gateshead, Tyne & Wear, UK.
Biofouling. 2021 Apr;37(4):452-464. doi: 10.1080/08927014.2021.1929937. Epub 2021 Jun 21.
A rapid benchtop method to measure the torque associated with minidiscs rotating in water using a sensitive analytical rheometer has been used to monitor the drag caused by marine fouling on coated discs. The method was calibrated using sandpaper surfaces of known roughness. Minidiscs coated with commercial fouling control coatings, plus an inactive control, were exposed in an estuarine harbour. After 176 days the drag on the fouling control-coated discs, expressed as a moment coefficient, was between 73% and 90% less than the drag on the control coating. The method has potential use as a screen for novel antifouling and drag reducing coatings and surfaces. Roughness functions derived using Granville's indirect similarity law are similar to patterns found in the general hydrodynamics literature, and so rotational minidisc results can be considered with reference to other fouling drag datasets.Supplemental data for this article is available online at https://doi.org/10.1080/08927014.2021.1929937 .
一种使用灵敏分析流变仪测量水中小圆盘旋转相关扭矩的快速台式方法已被用于监测涂覆圆盘上海洋污垢引起的阻力。该方法使用已知粗糙度的砂纸表面进行校准。涂有商业防污控制涂层的微盘以及一个非活性对照盘在河口港进行了暴露。176 天后，防污控制涂层盘上的阻力（表示为力矩系数）比对照涂层盘上的阻力小 73%至 90%。该方法有可能作为一种筛选新型防污和减阻涂层和表面的方法。使用 Granville 的间接相似定律得出的粗糙度函数与一般流体动力学文献中发现的模式相似，因此可以参考其他污垢阻力数据集来考虑旋转微盘结果。本文的补充数据可在线获取，网址为 https://doi.org/10.1080/08927014.2021.1929937 。
