Dual-Plane CH PLIFとSingle-Plane OH PLIFの同時計測による乱流予混合火炎の三次元火炎構造の解明(燃焼・反応(1),一般講演)

概要

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To investigate 3-dimensional flame structures of turbulent premixed flame, dual-plane planar laser induced fluorescence (PLIF) of CH radical has been developed. The newly-developed dual-plane CH PLIF has been combined with single-plane OH PLIF and stereoscopic particle image velocimetry (SPIV) to clarify the relation between flame geometry and turbulence characteristics. The laser sheets for OH PLIF and SPIV measurement are located at the center of two planes for CH PLIF, where the separation between these two CH planes is selected to 500μm. The measurement was conducted in relatively high Reynolds number turbulent jet premixed flame. The experimental results show that various 3-dimensional flame structures such as the handgrip structure, which has been shown by DNS, are included in high Reynolds number turbulent premixed flame. It was shown that the simultaneous measurement containing newly-developed dual-plane CH PLIF is useful for investigating the 3-dimensional flame structure.
日本流体力学会の論文
2008-09-04