The document analyzes the Eppler 61 airfoil using computational fluid dynamics (CFD) software XFLR5 and Fluent to simulate low Reynolds number flows. The results are compared to experimental data to validate that the Eppler 61 airfoil performs well at low Reynolds numbers, making it suitable for micro air vehicles. CFD simulations are conducted at Reynolds numbers of 46,000, 87,000 and 160,000 and angles of attack from -4 to 16 degrees with and without tripping to study separation bubbles. The computational results reasonably match the experimental data.

1. Computational Study on Eppler 61 Airfoil

13. Effect of Camber:

14. Effect of Camber:

25. Result and Discussion:

27. Comparison of C l with & without tripping for 46,000 Reynolds No.

28. Comparison of C l with & without tripping for 87,000 Reynolds No.

29. Comparison of C l with & without tripping for 1,60,000 Reynolds No.

30. For 46,000 Reynolds No.

31. For 87,000 Reynolds No.