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

Table 3

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

	Analytical method	Numerical method	Percentage error (%)
𝑅=−1	1.490782	1.490460	0.012660
𝑅=−0.5	1.464764	1.466093	0.090696
𝑅=0.5	1.568838	1.583640	0.934648
𝑅=1	1.542820	1.548592	0.372749