火炎の可視化と温度場の定量計測

抄録

In this paper, recent advances on the temperature measurement technique for application to the combusting flame are briefly reviewed, and two new flame temperature measurement techniques are described, such as the laser speckle technique and the flame reaction technique. These techniques are non-intrusive, and they can measure simultaneously multiple points in the flame. The former technique relies on the laser speckle pattern for the measurement of reflective-index distribution in the flame, which is a function of the temperature, while the latter technique is based on the visualization of the flame by flame reaction technique combined with the statistical thermodynamic consideration. Examples of the temperature measurements are given for the dilute hydrogen flame by laser speckle technique and for the flickering premixed methane/air flame by the flame reaction technique.