Vortex modeling of single and multiple dilution jet mixing in a crossflowAn analytical model for the behavior of normally injected jets in a crossflow is developed and applied to fluids of differing densities. Central to the model are the dynamics of the vortex pair structure associated with the local jet cross-section and the entrainment of crossflow by jet fluid. Two specific cases are modeled: one involving a single dilution jet in a crossflow, in which trajectories are found to scale primarily with jet-to-crossflow momentum ratio, and the other involving a series of spanwise jets injected into a crossflow, which indicates scaling with momentum ratio and with the spacing-to-orifice-diameter ratio. In the case of multiple jet penetration, however, merging of the jets into an approximately two-dimensional jet downstream of injection is observed for low spacing-to-diameter ratios.
Document ID
19850058550
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Karagozian, A. R. (California Univ. Los Angeles, CA, United States)
Kim, C. N. (California, University Los Angeles, United States)