Open AccessInvestigation of the influence of the three-dimensional roughness element on the flow over trapezoidal flying wing
Author(s) -
А. М. Павленко,
V. S. Kaprilevskaya,
В. В. Козлов
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1677/1/012025
Subject(s) - leading edge , wind tunnel , reynolds number , flow (mathematics) , surface finish , enhanced data rates for gsm evolution , wing , mechanics , materials science , geometry , optics , structural engineering , engineering , physics , turbulence , mathematics , composite material , telecommunications
The paper is devoted to the investigation of the flow and effects taken place when three-dimensional roughness element is placed on the leading edge of the trapezoidal flying wing. The experimental study was carried out in the working park of the subsonic wind tunnel. Low Reynolds numbers allowed running experiments at in-flight-like conditions. Pictures of the flow structure were obtained by liquid crystal thermography. It was found that longitudinal disturbances on the leading edge and behind three-dimensional roughness element form differently. Inner configuration of the longitudinal structure was shown by hot-wire measurements.