Open AccessЧисленные исследования особенностей обтекания крыла в режиме бафтинга
Author(s) -
А.В. Воеводин,
Д.А. Петров,
А.С. Петров,
В.Г. Судаков,
Г.Г. Судаков
Publication year - 2020
Publication title -
pisʹma v žurnal tehničeskoj fiziki
Language(s) - English
Resource type - Journals
eISSN - 1726-7471
pISSN - 0320-0116
DOI - 10.21883/pjtf.2020.13.49583.18285
Subject(s) - transonic , wind tunnel , wing , flow (mathematics) , mechanics , swept wing , angle of attack , reynolds number , physics , geology , geometry , structural engineering , aerodynamics , mathematics , engineering , turbulence
The numerical method validation using the Reynolds equations and calculations were made for the case of infinite aspect ratio rectangular wing, which is streamed by a transonic unbounded air flow in buffet regime. It is shown, that instead of 2D flow, a periodical flow along the lateral direction is realized. Furthermore, the oscillations in time along the longitudinal direction (buffet) take place. The presence of the side wind tunnel walls deforms this periodical structure and changes the buffet frequency. Calculations of the wing-body combination flow show that the oscillations take place inside the restricted wing area both along longitudinal and lateral directions.