Open AccessПодавление турбулентности в течениях с вращением
Author(s) -
Д.Ю. Жиленко,
О.Э. Кривоносова
Publication year - 2019
Publication title -
pisʹma v žurnal tehničeskoj fiziki
Language(s) - English
Resource type - Journals
eISSN - 1726-7471
pISSN - 0320-0116
DOI - 10.21883/pjtf.2019.17.48218.17740
Subject(s) - turbulence , amplitude , laminar flow , physics , mechanics , hysteresis , modulation (music) , couette flow , amplitude modulation , flow (mathematics) , optics , frequency modulation , acoustics , condensed matter physics , telecommunications , radio frequency , engineering
The possibilities of turbulence control in spherical Couette flow were examined experimentally. It was shown, that with increasing of outer sphere rotational rate modulation amplitude, the suppression of turbulence is possible with transition to laminar flow state. The reverse process - turbulence recovery - is available with amplitude decreasing. It was established that turbulence breaking and recovering is accompanied by hysteresis. It was shown, that at small values of modulation amplitude, suppression of turbulence is available only in narrow frequency band.