Open AccessNatural Thermal Convection Field Measurement Technology Based on Background Oriented Schlieren Technology
Author(s) -
Xi Chen,
Min Wu,
Mingyuan Zhang,
Kun Yang,
Peng Liu,
Haidong Zhu
Publication year - 2021
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 - 10.1088/1742-6596/1748/2/022022
Subject(s) - schlieren , natural convection , schlieren imaging , thermal , field (mathematics) , schlieren photography , optics , materials science , convection , mechanics , flow (mathematics) , physics , meteorology , flow visualization , mathematics , pure mathematics
Background oriented schlieren technology is developed from the combination of schlieren technology and PIV technology. It is an emerging non-contact flow field quantitative measurement method. The development and principle of background oriented schlieren technology are introduced in detail. A set of background oriented schlieren imaging system suitable for natural thermal convection field is built. The quantitative measurement research is carried out on the natural thermal convection field above the candle flame, and the density field is calculated. Distorted vector displacement map. The results show that the background oriented schlieren technology can be better applied to the quantitative measurement of natural thermal convection field, and it has broad development prospects.