Symmetry Methods of Flow and Heat Transfer between Slowly Expanding or Contracting Walls

Table 9

Comparison between analytical and numerical solutions for self-axial velocity 𝑢/𝑥 at 𝑦=0.1 for 𝑅=1, 𝛼=−0.5.

	Analytical method	Numerical method	Percentage error (%)
𝑅𝑒=−1	1.460785	1.464232	0.235434
𝑅𝑒=−0.5	1.455288	1.456930	0.114768
𝑅𝑒=0.5	1.444204	1.445507	0.090102
𝑅𝑒=1	1.438678	1.440991	0.160530