Space-time analysis of axisymmetric jets of air and helium

作者：Boujemaa S; Amielh M; Chauve MP^*

来源：Comptes Rendus Mecanique, 2004, 332(11): 933-939.

DOI：10.1016/j.crme.2004.06.009

• fluid mechanics
• jet
• instability
• variable density

Space-time analysis of axisymmetric jets of air and helium. The effects of strong density variations on the dynamics of instabilities which develop in axisymmetric jets of pure air, or pure helium are studied in the near field. By using LDV measurements associated with fast visualization techniques, space-time diagrams are built in order to show the evolution of the structures along the jets according to their Reynolds number and their density. In particular, the global character of the helium jet instabilities is highlighted. To cite this article: S. Boujemaa et al., C. R. Mecanique 332 (2004).

• 出版日期2004-11