Planar measurements of velocity and concentration of turbulent mixing in a T-junction

Kristian Mark Ingvorsen, Knud Erik Meyer, N. F. Nielsen

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Abstract

Turbulent mixing of two isothermal air streams in a T-junction of square ducts are investigated. Three dimensional velocity fields and turbulent kinetic energy are measured with stereoscopic Particle Image Velocimetry (PIV). The concentration field is obtained with a planar Mie scattering technique using the stereoscopic PIV setup. The concentration measurement method is developed in the present study and the
accuracy of the technique is investigated. The resulting data are two dimensional concentration fields taken at 4Hz. The combination of velocity, turbulence and concentration fields give valuable insight into the mixing process, e.g. by showing large scale flow instabilities. The present technique is well suited for easy testing of mixing devices and for validation of computational models.
Original languageEnglish
Publication date2011
Number of pages5
Publication statusPublished - 2011
Event9th International Symposium On Particle Image Velocimetry - Kobe University, Kobe, Japan
Duration: 21 Jul 201123 Jul 2011
Conference number: 9
http://piv11.org/

Conference

Conference9th International Symposium On Particle Image Velocimetry
Number9
LocationKobe University
CountryJapan
CityKobe
Period21/07/201123/07/2011
Internet address

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