Open AccessИнтенсификация теплообмена в нагреваемой пленке жидкости при воздействии внешних искусственных возмущений
Author(s) -
Е.А. Чиннов,
И.А. Шарина
Publication year - 2018
Publication title -
pisʹma v žurnal tehničeskoj fiziki
Language(s) - English
Resource type - Journals
eISSN - 1726-7471
pISSN - 0320-0116
DOI - 10.21883/pjtf.2018.21.46854.17449
Subject(s) - heat transfer , reynolds number , wavelength , mechanics , amplitude , heat transfer enhancement , distilled water , heat flux , materials science , thermodynamics , physics , heat transfer coefficient , optics , turbulence
Heat transfer in a heated film of distilled water under the action of external artificial perturbations with “the most dangerous wavelength” and variation in the Reynolds number from 300 to 500 has been studied. It has been shown that the action of artificial perturbations with an increase in the heat flux density leads to a change in the rivulet-wave structure of the flow, increase in wave amplitudes, and, finally, heat transfer enhancement.