Table 1 Comparison of surface drag force with Saleem and Nadeem44 and Chamka et al.45.

From: An assessment of the mathematical model for estimating of entropy optimized viscous fluid flow towards a rotating cone surface

\(\Pr\)

\(\lambda\)

Saleem and Nadeem44

Chamka et al.45

Recent results

\(C_{fx} Re_{x}^{1/2}\)

\(\tfrac{1}{2}C_{fy} Re_{x}^{1/2}\)

\(C_{fx} Re_{x}^{1/2}\)

\(\tfrac{1}{2}C_{fy} Re_{x}^{1/2}\)

\(C_{fx} Re_{x}^{1/2}\)

\(\tfrac{1}{2}C_{fy} Re_{x}^{1/2}\)

0.7

0.0

1.0255

0.6154

1.0255

0.6158

1.0255

0.6156

1.0

2.2010

0.8493

2.2012

0.8496

2.2010

0.8494

10.0

8.5042

1.3992

8.5041

1.3995

8.5043

1.3992

10.0

0.0

1.0255

0.6158

1.0256

0.6158

1.0256

0.6158

1.0

1.5630

0.6835

1.5636

0.6837

1.5631

0.6835

10.0

5.0820

0.9845

5.0821

0.9840

5.0822

0.9842