Aerodynamic Layout Design and Internet of Things Control Simulation of Micro-Sized Coaxial Twin-Rotor Flight System

A small collapsible common-axis dual-rotor drone has been designed independently by performance indicators. The model was computed through three-dimensional modeling and meshing. Using Fluent software, the wind tunnel test simulation of the blades was obtained, and the results of the blade model test were compared with the results of the blade model. The lift data of CFD at different speeds were consistent with the results of the paddle model test, with a maximum error of only 12.46%. Using the mesh Boltzmann method (LBM) based on smooth particle theory, the non-normal aerodynamic strain of the most severe conditions in the flat flight is selected for modeling analysis. The aerodynamic layout design of a type of coaxial twin-rotor aircraft and its nonlinear six-degree-of-freedom flight simulation modeling and control system were verified. The results show that the design of the common-axis twin-rotor aircraft can meet the higher aerodynamic index requirements. The control performance and wind disturbance resistance of the designed aircraft are tested and verified by the flight simulation of Matlab/Simulink, and the simulation results show that the system can achieve the desired control goal by adding the closed-loop altitude controller and speed controller. It also provide a basis for further study of its aerodynamic properties.