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Non-scanning 3D-CT measurement of Premixed Flames

DOI: 10.1615/ICHMT.2006.TurbulHeatMassTransf.1320
pages 617-620

Yojiro Ishino
Department of Mechanical Engineering, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya 466-8555, Japan

Osamu Inagawa
Department of Mechanical Engineering, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya 466-8555, Japan

Norio Ohiwa
Department of Mechanical Engineering, Nagoya Institute of Technology Gokiso-cho, Showa-ku, Nagoya 466-8555, Japan

Abstract

Instantaneous three-dimensional distributions of fuel consumption rate of propane/air fuel-rich premixed "blue" flames are captured by a newly proposed technique; "non-scanning three-dimensional computerized tomography (3D-CT) technique" with a custom-made multi(40)-lens camera. The results for the turbulent burner flame show that the flame front is observed to be a thin wrinkled luminous region of 0.6 mm in thickness and flame-quenching exists at the cusps and ridges. The maximum local fuel consumption rate of 2.7 g(propane)/s/m3 is derived from the 3D distribution. Instantaneous 3D-CT image of spark-ignited spherically-expanding flame is also obtained by the proposed technique.

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