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

Table 11

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	1.418772	1.419039	0.018778
𝑅𝑒=−0.5	1.434252	1.435114	0.060097
𝑅𝑒=0.5	1.465211	1.465912	0.048020
𝑅𝑒=1	1.480690	1.480513	0.012005