Hunsucker J Travis, Hunsucker Kelli Z, Gardner Harrison, Swain Geoffrey
a Center for Corrosion and Biofouling Control , Florida Institute of Technology , Melbourne , FL , USA.
Biofouling. 2016 Nov;32(10):1209-1221. doi: 10.1080/08927014.2016.1242724.
The role of hydrodynamic wall shear stresses on the development of the fouling community structure and resulting frictional drag were examined using a commercially available fouling release coating. Immersed test panels were exposed to three different hydrodynamic treatments, one static and two dynamic (corresponding to an estimated wall shear stress of 7.0 and 25.5 Pa). The drag of the panels was measured in a hydrodynamic test chamber at discrete time intervals over 35 days. The fouling community composition on the static panels was significantly different from the organisms observed on the dynamic panels. Despite different fouling community composition, the drag forces measured on the panels were very similar. This suggests that the frictional drag of low form and soft fouling communities are similar and that there may be a stepwise increase in frictional drag associated with the presence of mature calcareous organisms.
使用市售的防污释放涂层，研究了流体动力壁面剪应力对污垢群落结构发展以及由此产生的摩擦阻力的作用。将浸没的测试面板暴露于三种不同的流体动力处理中，一种是静态的，两种是动态的（分别对应于估计为7.0和25.5 Pa的壁面剪应力）。在35天的时间里，以离散的时间间隔在流体动力测试室中测量面板的阻力。静态面板上的污垢群落组成与动态面板上观察到的生物显著不同。尽管污垢群落组成不同，但在面板上测量到的阻力非常相似。这表明低形态和软污垢群落的摩擦阻力相似，并且与成熟钙质生物的存在相关的摩擦阻力可能会逐步增加。
