Figure 3
From: Flexible conformable hydrophobized surfaces for turbulent flow drag reduction
Drag coefficient (CD) values at various Reynolds numbers (Re) for all superhydrophobic cylinder samples. The graphs show plastron bearing results (diamonds), wetted out after pre-treatment results (squares) and smooth plain cylinder (circles) for (a) electrodeposited copper mesh number 40 with wire diameter 221 μm and spacing of 490 μm, (b) electrodeposited copper mesh number 60 with wire diameter 195 μm and spacing of 265 μm, (c) electrodeposited copper mesh number 100 with wire diameter 59 μm and spacing of 210 μm, (d) electrodeposited copper mesh number 200 with wire diameter 55 μm and spacing of 75 μm and (e) soot.
