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

Table 7

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	1.382767	1.387131	0.314608
𝛼=−0.5	1.418772	1.419039	0.018778
𝛼=0.5	1.490782	1.490460	0.021660
𝛼=1	1.526788	1.530071	0.214601