G134 PLIF/PIV 同時計測による乱流予混合火炎の構造解明

抄録

Distribution of CH and OH radicals and the 3-component velocity field are measured simultaneously by planar laser induced fluorescence (PLIF) and stereoscopic particle image velocimetry (PIV) in turbulent premixed flame of laboratory scale swirl burner. The measured CH and OH profiles indicate the location of local flame front and its shape, and accompanying 3-component velocity field provide the instantaneous velocity field. The observed scale of wrinkled flame front and flame cusps correspond to integral length scale and Taylor micro scale of unburned mixture, respectively. The interactions between flow field and local flame front were observed by these measurements.