Abstract A theoretical prediction method of the scattering fan tone radiation from a turbofan inlet duct by airframe fuselage is presented. The noise modelled an acoustic disc source that represents sound field at termination. Adjacent to cylindrical scatters radiation. valid for upstream pressure on affected refraction as it propagates through boundary layer. This effect known layer shielding ...

The requirements of increasing air traffic volume while enhancing its sustainability for the next generation transportation demand a step change in aircraft performance, which development and technology escalation ultra-high aspect ratio wings configurations is one key enabling strategy. However, compared with conventional aircraft, structure bears higher loads, poses challenges to configuratio...

In order to accurately predict the motion trajectory of ice shedding and ensure safe flight aircraft, characteristics under two-dimensional (2D) three-dimensional (3D) conditions are simulated analyzed. Considering influence any possible shape its rotation magnitude direction acceleration with time aerodynamic force, a six degree-of-freedom analysis method is introduced in this paper. This pape...

This paper presents a first investigation into the aerodynamics and performance breakdown of distributed aft-fuselage boundary layer ingesting (BLI) tube-and-wing aircraft using fully coupled Unsteady Reynolds-Averaged Navier-Stokes (URANS) calculations that resolve complete fan installation geometries. Through URANS simulations, interaction between turbulence from fuselage (BL) BLI propulsor i...

In the present paper we give account of an effort that aimed at the unification of the whole geometric preprocessing that preceded the wind tunnel readings with a realistic airplane wing model in a recent research project. This preprocessing includes the automated generation of the CAD models which were used for the manufacturing of the multi-parted wing-fuselage configuration and the generatio...