Table 3 Impact upon skin friction regarding different values of emerging parameters.

From: Gravity-driven hydromagnetic flow of couple stress hybrid nanofluid with homogenous-heterogeneous reactions

\(\lambda\)

\(\varphi_{1} + \varphi_{2}\)

\(M\)

\(K\)

\(1/2{\text{Re}}_{x}^{1/2} C_{{f_{x} }}\) for \(SWCNTs\)

\(1/2{\text{Re}}_{x}^{1/2} C_{{f_{x} }}\) for \(SWCNTs + MWCNTs\)

0.0

0.01

0.1

0.1

0.9988

1.2346

0.5

   

1.0325

2.3457

0.9

   

1.2436

2.8578

 

0.02

  

1.3547

2.9689

 

0.03

  

1.4758

3.1799

 

0.05

  

1.5869

3.2831

  

0.2

 

1.6972

3.3943

  

0.3

 

1.8281

3.4452

  

0.4

 

1.9321

3.5661

   

0.2

2.0236

3.6782

   

0.3

2.1345

3.7971

   

0.4

2.2435

3.8182