Development of New Correlations and Parametric Optimization in Nanofluid Flow through Protruded Roughened Square Channel

Table 3

Control factors.

Control factor	Range
A: Reynolds number,	6000–18000
B: nanoparticle concentration,	0.01–0.04
C: nanoparticle diameter	30–45
D:stream-wise pitch	1.40–2.60
E: span-wise pitch,	1.40–2.60
F: proportion of protrusion height and print diameter	0.83–1.67