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

Table 6

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

	Analytical method	Numerical method	Percentage error (%)
𝛼=−1	1.419768	1.426770	0.490778
𝛼=−0.5	1.460785	1.464232	0.235434
𝛼=0.5	1.542820	1.548592	0.372749
𝛼=1	1.583837	1.595620	0.738487