Open AccessSuperstructures in a diffusion torch
Author(s) -
В. В. Леманов,
Vladimir V. Lukashov,
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 - 10.1088/1742-6596/1677/1/012041
Subject(s) - plume , particle image velocimetry , mechanics , vortex , diffusion , combustor , particle tracking velocimetry , flow visualization , isothermal process , materials science , diffusion flame , visualization , flow (mathematics) , physics , chemistry , thermodynamics , combustion , turbulence , mechanical engineering , engineering
The paper presents the experimental results for isothermal flows (CO2, propane) and diffusion flames (C3H8 or H2 mixed with CO2). Optical method of PIV (Particle Image Velocimetry) and flow visualization are used. The paper considers the features of the effect of vortex superstructures on an attached diffusion plume. When superstructures interact with the flame front, the question of choosing the determining scales becomes ambiguous. Apparently, the features of the perturbation interaction can depend on the acoustic characteristics of the flows and, accordingly, on the nature of the density distribution in the plume.