Three-dimensional recomposition of the absorption field inside a nonbuoyant sooting flame.

A remote scanning retrieval method was developed to investigate the soot layer produced by a laminar diffusion flame established over a flat plate burner in microgravity. Experiments were conducted during parabolic flights. This original application of an inverse problem leads to the three-dimensional recomposition by layers of the absorption field inside the flame.

Velocity measurements by particle image velocimetry using a direct intercorrelation algorithm: application to the interaction between a water mist and a liquid pool fire.

The aim of this study was to obtain better characterization of the interaction between a water mist and a diffusion flame of small-scale size. A PIV algorithm was used to determine the flow pattern with and without a water mist and its relation to the velocity of water droplets.