中国物理B ›› 2016, Vol. 25 ›› Issue (10): 100701-100701.doi: 10.1088/1674-1056/25/10/100701
Shuang Chen(陈爽), Tie Su(苏铁), Zhong-Shan Li(李中山), Han-Chen Bai(白菡尘), Bo Yan(闫博), Fu-Rong Yang(杨富荣)
Shuang Chen(陈爽)1,2, Tie Su(苏铁)2, Zhong-Shan Li(李中山)3, Han-Chen Bai(白菡尘)1,2, Bo Yan(闫博)2, Fu-Rong Yang(杨富荣)1,2
摘要: An accurate and reasonable technique combining direct absorption spectroscopy and laser-induced fluorescence (LIF) methods is developed to quantitatively measure the concentrations of hydroxyl in CH4/air flat laminar flame. In our approach, particular attention is paid to the linear laser-induced fluorescence and absorption processes, and experimental details as well. Through measuring the temperature, LIF signal distribution and integrated absorption, spatially absolute OH concentrations profiles are successfully resolved. These experimental results are then compared with the numerical simulation. It is proved that the good quality of the results implies that this method is suitable for calibrating the OH-PLIF measurement in a practical combustor.
中图分类号: (Visible and ultraviolet spectrometers)