Open AccessInfluence of deltoid tabs on flow dynamics and heat transfer in the separation region behind a back-facing step
Author(s) -
В. И. Терехов,
Aleksey Yu. Dyachenko,
В. Л. Жданов,
Ya J. Smulsky,
К. А. Шаров
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 - 10.1088/1742-6596/1677/1/012031
Subject(s) - heat transfer , flow (mathematics) , mechanics , vortex , transverse plane , separation (statistics) , flow separation , vortex generator , meteorology , materials science , physics , geometry , mathematics , engineering , turbulence , structural engineering , statistics
The results of an experimental study of the influence of deltoid tabs on flow dynamics and heat transfer in the separation region behind a back-facing step at Re = 4000 are presented. The studied tabs are triangular in shape with a height of 6 mm. The transverse pitch of their arrangement varies. The flow pattern behind a ledge with mounted tabs, whose structure differs significantly from the flow pattern behind a classical step, is obtained. The presence of tabs brings the maximum heat transfer region closer to the step, while with a decreasing pitch between them the vortex generators become more effective.