Open AccessCalculation and analysis of interaction flowfield over tiltrotor aircraft in conversion mode
Author(s) -
Huan Li,
Xiaojun Wu,
Hailiang Jia,
Guocheng Zhou,
Pengcheng Cui,
Bin Li
Publication year - 2021
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/1081/1/012046
Subject(s) - fuselage , thrust , aerodynamics , wing , rotor (electric) , wake , aerospace engineering , aeroelasticity , engineering , aerodynamic force , computer simulation , structural engineering , mechanical engineering , simulation
Aiming at solving the complicated aerodynamic interaction problem of conversion mode, the preconditioning method is applied. Combined with the unstructured hybrid technique and the overlapping grid interpolation technique, a numerical simulation method for tiltrotor aircraft in conversion mode is established. On this basis, the validity of the numerical method is verified. Then, with the numerical simulation of isolated rotor, isolated fuselage and tiltrotor aircraft, the laws of the aerodynamic interaction of rotor/fuselage/wing/tail are analyzed with tilting process. The calculation results show that the rule of the influence of the rotor wake on the aerodynamic performance of the wing is different between the inner side and the outer side of the wing. Compared with the isolated rotor, the thrust coefficient of the rotor of the aircraft increases slightly by 0 ∼ 5% during the tilting process due to wing and the fuselage.