  This study investigates the effects of porosity on flying creatures such as
dragonflies, moths, hummingbirds, etc. wing and shows that pores can affect
wing performance. These studies were performed by 3D porous flapping wing flow
analyses on Comsol Multiphysics. In this study, we analyzed different numbers
of the porous wing at different angles of inclination in order to see the
effect of pores on lift and drag forces. To compare the results 9 different
analyses were performed. In these analyses, airflow velocity was taken as 5
m/s, angle of attack as 5 degrees, frequency as 25 Hz, and flapping angle as 30
degrees. By keeping these values constant, the number of pores was changed to
36, 48, and 60, and the pore angles of inclination to 60, 70, and 80 degrees.
Analyses were carried out by giving laminar flow to this wing designed in the
Comsol Multiphysics program. The importance of pores was investigated by
comparing the results of these analyses.
