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TECHNICAL PAPERS: Jets and Wakes

Self-Preserving Properties of Unsteady Round Nonbuoyant Turbulent Starting Jets and Puffs in Still Fluids

[+] Author and Article Information
R. Sangras, O. C. Kwon, G. M. Faeth

Department of Aerospace Engineering, The University of Michigan, Ann Arbor, MI 48109-2140

J. Heat Transfer 124(3), 460-469 (May 10, 2002) (10 pages) doi:10.1115/1.1421047 History: Received February 02, 2001; Revised August 03, 2001; Online May 10, 2002
Copyright © 2002 by ASME
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References

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Figures

Grahic Jump Location
Streamwise penetration distances as a function of time for round nonbuoyant turbulent starting (Q0/(A0d)=∞) and interrupted (I) jets in still environments
Grahic Jump Location
Virtual origin locations of interrupted jets as a function of injected liquid volume for round nonbuoyant turbulent puffs and interrupted jets in still environments
Grahic Jump Location
Radial penetration distances of puffs as a function of streamwise penetration distances for round nonbuoyant turbulent puffs in still environments
Grahic Jump Location
Sketch of the test apparatus for round nonbuoyant starting jets, puffs, and interrupted jets in still environments
Grahic Jump Location
Flow rate transients due to starting and stopping of the source syringe pump
Grahic Jump Location
Sketches of round turbulent flows from starting jets and puffs
Grahic Jump Location
Visualization of a round turbulent nonbuoyant starting jet in a still environment (d=6.4 mm,u0=460 mm/s, and Re0=3000)
Grahic Jump Location
Streamwise penetration distances of jets as a function of time for round nonbuoyant turbulent starting jets in still environments
Grahic Jump Location
Radial penetration distances of jet tips as a function of streamwise penetration distances for round nonbuoyant turbulent starting jets in still environments
Grahic Jump Location
Radial penetration distances of trailing jets as a function of streamwise penetration distances for round nonbuoyant turbulent starting jets
Grahic Jump Location
Radial penetration distances of jets as a function of streamwise distances for steady turbulent round nonbuoyant jets in still environments
Grahic Jump Location
Visualization of a round turbulent nonbuoyant puff in a still environment (d=6.4 mm,u0=930 mm/s,Re0=6000,Q0/(A0d)=50)
Grahic Jump Location
Streamwise penetration distances of puffs as a function of time for round nonbuoyant turbulent puffs in still environments

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