Open AccessИнтенсификация ламинарного течения в узком микроканале с однорядными наклоненными овально-траншейными лунками
Author(s) -
С.А. Исаев,
П.А. Баранов,
А.И. Леонтьев,
И.А. Попов
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.2018.09.46068.17066
Subject(s) - dimple , laminar flow , trench , channel (broadcasting) , flow (mathematics) , geometry , mechanics , maximum flow problem , plane (geometry) , geology , open channel flow , materials science , section (typography) , physics , mathematics , engineering , telecommunications , composite material , computer science , layer (electronics) , mathematical optimization , operating system
A fully developed laminar air flow in a plane-parallel channel of width 6 and height 1 with single-row inclined oval-trench dimples on the walls are calculated using multiblock computing technologies at Re = 10^3. A periodic channel section of length 4 with one dimple of length 4.5, width 1, an angle of inclination to the flow of 45°, and a depth varying from 0 to 0.375 is considered. Intensification of a laminar flow in the flow core in a channel supplied with trench dimples of depth more than 0.25, such that the maximum velocity is 1.5 times higher than the maximum flow velocity in a smooth channel, is found.