CFD Prediction of Airfoil Drag in Viscous Flow Using the Entropy Generation Method

Table 1

Specification of grid and convergence study (, ).

Grid	Number of elements	First cell wall distance	Growth rate	Plus
Coarse grid			1.15	50~200	124	39	85	0.804
Medium grid			1.15	5~40	103	23	80	0.919
Medium-fine gird			1.15	<5	94	21	73	1.352
Fine gird			1.05	<1	101	24	77	1.385