Abstract
This paper presents the experimental results of overexpanded jets delivered from a primary Mach 2 convergent-divergent circular nozzle surrounded by an annular co-flow. It is found that the co-flow is effective in elongating the supersonic core and reducing the mixing in the far-field. The overexpansion level of the primary jet plays a dominant role in modifying the shock-structure and far-field jet characteristics significantly. Maximum elongation in the supersonic core length was observed at NPR 4.
Original language | English |
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Title of host publication | Proceedings of 34th National Conference on Fluid Mechanics and Fluid Power 2007 |
Publication status | Published - Dec 2007 |