The spreading of self-excited hot jets by side jets
- 1 March 1989
- journal article
- letter
- Published by AIP Publishing in Physics of Fluids A: Fluid Dynamics
- Vol. 1 (3) , 446-448
- https://doi.org/10.1063/1.857467
Abstract
A transitional, heated, axisymmetric air jet is investigated in the regime in which it is self‐excited and develops a regular sequence of intense vortex ring structures. Seeding of the jet fluid and laser illumination reveals a star‐shaped jet cross section with between two and six radial fingers. Each finger thereby represents a cut through a strong quasisteady side jet that is directed away from the main jet axis and is approximately planar. It is suggested that these side jets contribute prominently to the entrainment of all jets with strong primary vortex ring structures.Keywords
This publication has 10 references indexed in Scilit:
- Self-Excited Oscillations and Mixing in a Hot JetPhysics of Fluids, 1988
- Absolute instability in hot jetsAIAA Journal, 1988
- Bifurcations to Local and Global Modes in Spatially Developing FlowsPhysical Review Letters, 1988
- Two-dimensional shear-layer entrainmentAIAA Journal, 1986
- Streamwise vortex structure in plane mixing layersJournal of Fluid Mechanics, 1986
- Absolute and convective instabilities in free shear layersJournal of Fluid Mechanics, 1985
- Perturbed Free Shear LayersAnnual Review of Fluid Mechanics, 1984
- A spanwise structure in the plane shear layerJournal of Fluid Mechanics, 1983
- Large-scale structure in the mixing layer of a round jetJournal of Fluid Mechanics, 1978
- The instability of short waves on a vortex ringJournal of Fluid Mechanics, 1974