Application of the time-frequency technique for analysis of velocity fluctuations in the wake of a teardrop profile in the presence of a localized flow inhomogeneity

D. S. Mironov, V. A. Lebiga, V. N. Zinoviev, A. Yu Pak

Результат исследования: Научные публикации в периодических изданияхстатья по материалам конференциирецензирование

Аннотация

Experimental simulation of the inhomogeneity of the incident flow localized in time and space on a bluff tear-drop airfoil is carried out. It is shown that in the region outside the aerodynamic wake of the tear-drop airfoil, the presence of inhomogeneity leads to an increase in the amplitudes of velocity fluctuations in a wide frequency range. In the region inside the wake, the presence of inhomogeneity leads to the suppression of velocity fluctuations at the frequency of vortex shedding by a factor of 2–3 in amplitude. The intensification of fluctuations at frequencies above the main one was also noted, and there was no effect on fluctuations at lower frequencies.

Язык оригиналаанглийский
Номер статьи012025
ЖурналJournal of Physics: Conference Series
Том2057
Номер выпуска1
DOI
СостояниеОпубликовано - 8 ноя 2021
Событие6th All-Russian Conference on Thermophysics and Physical Hydrodynamics, TPH 2021 and the School for Young Scientists on Thermal Physics and Physical Hydrodynamics: Modern Challenges, TPHMC2021 - Sevastopol, Украина
Продолжительность: 22 авг 202129 авг 2021

Предметные области OECD FOS+WOS

  • 1.03 ФИЗИЧЕСКИЕ НАУКИ И АСТРОНОМИЯ

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