Prediction of static stability in tandem wing unmanned aerial vehicle

Abstract

The development of tube-launched folding wing UAV has become current interest and accordingly static stability analysis of this UAV would be necessary. The objective of this paper is to conduct a study to evaluate static stability of tube launched tandem wing UAV at its cruise condition. Computational fluid dynamics (CFD) using ANSYS CFX is conducted to acquire forces and moments acting on the UAV at various angles of attack and sideslip angles. Furthermore, static stability parameters such as Cm, CL, Cl, Cn, and CY are determined from the forces and moments obtained previously. The result indicates that the ITB tandem wing UAV complies the static stability criteria at its cruise condition.