Evaluation of Effect of Taper Ratio on Aerodynamic Characteristics of MAVs with Inspired from Insects Wing

In this investigation, a numerical method based on potential flow has been developed for aerodynamic analysis of morphing MAVs. At first, results of this method are validated with experimental data and then, effect of taper ratio greater than one has been studied on aerodynamic characteristic. Results show that increasing taper ratio, whether is the range of zero to one or bigger one, cause increasing lift coefficient and improving performance of the MAVs. The only disadvantage of taper ratio of bigger one is appearing large pitching moments. Of course, in MAVs is negligible due to the small size. In this study, also a mechanism for creation of different taper ratios has been discussed. Finally, the modeling of insect wings hav been presented for use in the MAVs. The aerodynamic coefficients were compared with conventional wings. The results show a decrease in slope Cm - CL Curve and this represents an increase in longitudinal stability MAV.