Flow seeding with an air nebulizer

In the framework of studies on anemometric measurements or tomographic visu alizations, the seeding of a reactive flow by a nebulizer has been analyzed . In order to determine the performances of this apparatus, different liqui ds have been tested to evaluate the influence of their physical properties on the droplets size distribution. Measurements have been made using a Phas e Doppler Anemometer. It is shown that the mean D-10 diameter lies between 2 and 3 mu m, whatever the liquid may be, except pure water, and that, with in a certain range, viscosity and surface tension have little influence on the size distribution. The ability of these liquids to seed reactive mixtur e is also discussed and especially their interaction in premixed flames.