Table 3 The variation of skin fraction on both plates.

From: Scientific investigation of a fractional model based on hybrid nanofluids with heat generation and porous medium: applications in the drilling process

\(\phi_{s1} + \phi_{s2}\)

\(Cf\) at \(y = 0\)

\(Cf\) at \(y = 1\)

0

0.635

− 1.692

0.01

0.667

− 1.743

0.02

0.719

− 1.841

0.03

0.795

− 2

0.04

0.887

− 2.196

Different fluids

\(Cf\) at \(y = 0\)

\(Cf\) at \(y = 1\)

Water

0.635

− 1.692

Gr

0.66

− 1.737

Al2O3

0.638

− 1.689

Gr-Al2O3

0.667

− 1.743

Shape, m

\(Cf\) at \(y = 0\)

\(Cf\) at \(y = 1\)

Bricks, 3.9

0.667

− 1.743

Cylinders, 4.9

0.674

− 1.753

Platelets, 5.7

0.679

− 1.76

Blades, 8.6

0.7

− 1.796

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