Table 4 Numerical values of Nusselt number for various parameters, whereas Pr = 6–2, Tr = 1–7, Rd = 0–3, A = 0–8.

From: Unsteady hybrid-nanofluid flow comprising ferrousoxide and CNTs through porous horizontal channel with dilating/squeezing walls

φ1

φ2

R

α

Fe2O3SWCNT

Fe2O3MWCNT

Fe2O3H2O

Nulower

Nuupper

Nulower

Nuupper

Nulower

Nuupper

0.1

0.04

15

0.5

2.623501

0.044842

2.769287

0.036053

3.134645

0.017455

0.1

   

2.985461

0.029317

3.144821

0.023107

3.708826

0.008024

0.1

   

3.350027

0.019319

3.522456

0.014942

4.285125

0.003736

0.1

   

3.71589

0.012857

3.901049

0.009768

4.861984

0.001771

 

0.05

  

2.502922

0.049695

2.666787

0.038849

3.098331

0.016334

 

0.06

  

2.393887

0.05427

2.571603

0.041487

3.062225

0.015309

 

0.07

  

2.294553

0.05857

2.482773

0.043981

3.026315

0.01437

  

10

 

1.876024

0.124614

1.964547

0.109201

2.181858

0.071339

  

15

 

2.623501

0.044842

2.769287

0.036053

3.134645

0.017455

  

20

 

3.411643

0.014903

3.613273

0.010942

4.119244

0.00387

   

0.7

2.603902

0.044423

2.74759

0.0357

3.107179

0.017257

   

0.9

2.584415

0.044006

2.72602

0.035348

3.079886

0.01706

   

1.1

2.56504

0.043592

2.704578

0.034999

3.052766

0.016865