Please use this identifier to cite or link to this item: https://hdl.handle.net/2440/70600
Type: Conference paper
Title: Scaling trajectories for jets in confined cross-flows
Author: Birzer, C.
Dally, B.
Kelso, R.
Citation: Proceedings of the 6th Australian Conference on Laser Diagnostics in Fluid Mechanics and Combustion, 2011: pp.1-4
Publisher: University of NSW
Publisher Place: Australia
Issue Date: 2011
ISBN: 9780987237408
Conference Name: Australian Conference on Laser Diagnostics in Fluid Mechanics and Combustion (6th : 2011 : Canberra, Australia)
Statement of
Responsibility: 
C.H. Birzer, B.B. Dally and R.M. Kelso
Abstract: In a non-premixed flame, the mixing of fuel emerging from a jet burner with quiescent air plays a dominant role in the combustion process. The use of radial injectors upstream of the nozzle exit can be used to increase boundary layer turbulence, and thereby enhancing the mixing of fuel and air. In the current paper, a single side jet entering radially into a pipe is investigated experimentally using planar laser induced fluorescence (PLIF). This configuration is variant of a jet in cross-flow (JICF), although the cross-flow generated by the central pipe is confined cross-flow. Therefore, the walls of the pipe may influence the side-jet and the existing knowing of JICF may not extend completely to the confined cross-flow environment. In the current paper the penetration of a side jet into the pipe flow is assessed and a new scaling parameter is determined. Scaling the depth by r0.75D, where r is the velocity ratio and D is the central pipe diameter, is proposed and compared with conventional scaling for JICF (rD and r2D). The results indicate the proposed scaling produces in a very good collapse of data onto a single line for non-laminar side jet emerging into turbulent flows.
Rights: Copyright status unknown
Description (link): http://www.acldfmc.org/
Appears in Collections:Aurora harvest 5
Environment Institute publications
Mechanical Engineering conference papers

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