This paper investigates the drag reduction matching of modular flying cars based
on a nested configuration. To address the high aerodynamic drag issue of
traditional modular flying car configurations, a nested design scheme is
proposed. In this scheme, the cabin is extracted from a low-drag car and
combined with the flying module using a nested approach, achieving aerodynamic
matching between the cabin, driving module, and flying module. First, the
conceptual design of the new modular flying car and the parameters of each
module, including the driving module, cabin module, and flying module, are
introduced. Then, computational fluid dynamics (CFD) methods are utilized to
numerically simulate the aerodynamic characteristics of the new flying car, and
the results are compared with the existing typical modular flying car, AIRBUS.
The research results show that the nested modular flying car exhibits superior
aerodynamic performance in both driving and flying modes. Compared to the
typical modular flying car AIRBUS, the nested modular flying car reduces the
drag coefficient by 47.09% in driving mode and 43.26% in flying mode.