Hydrodynamic effects induced by nanosecond sparks in air and air/fuel mixtures

Sergey Stepanyan (1) , Jun Hayashi , Christophe O Laux (1) , E. Pannier , A. Salmon , Sara Lovascio (2) , Gabi D. Stancu (1)

1 EM2C - Laboratoire d'Énergétique Moléculaire et Macroscopique, Combustion
2 LGPPTS - Laboratoire Génie des Procédés Plasmas et Traitement de Surface

It was found that short and intense energy release in nanosecond sparks can induce hydrodynamic motion of the gas over a long distance of the order of centimeter. The gas motion induces the transport of active species produced by plasma into the surrounding space. The present work characterizes these mentioned processes for both single and repetitive sparks under various discharge conditions.

Domaines: Sciences de l'ingénieur [physics]

Sergey Stepanyan, Jun Hayashi, Christophe O Laux, E. Pannier, A. Salmon, et al.. Hydrodynamic effects induced by nanosecond sparks in air and air/fuel mixtures. 55th AIAA Aerospace Sciences Meeting, Jan 2017, Grapevine, United States. ⟨10.2514/6.2017-1581⟩. ⟨hal-01866399⟩