Frictional drag measurements of large-scale plates in an enhanced plane channel flowcell.

This paper describes the design of an enhanced, plane channel, flowcell and its use for testing large-scale coated plates (0.6 m × 0.22 m) in fully developed flow, over a wide range of Reynolds numbers, with low uncertainty.

An investigation into the effects of marine biofilm on the roughness and drag characteristics of surfaces coated with different sized cuprous oxide (CuO) particles.

Biofilms typically increase surface roughness and consequently the drag penalties on marine vessels. However, there is a lack of data regarding the time-dependent influence of biofilms on antifouling surface characteristics and frictional drag, especially for surface coatings with different sizes of cuprous oxide (). In this study, a series of pressure drop measurements was carried out using flat plates coated with different sizes of .