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TECHNICAL PAPERS

Entrainment Characteristics of Transient Turbulent Round, Radial and Wall-Impinging Jets: Theoretical Deductions

[+] Author and Article Information
Lijun Song, John Abraham

Maurice J. Zucrow Laboratories, School of Mechanical Engineering, Purdue University, West Lafayette, IN 47907-2014e-mail: jabraham@ecn.purdue.edu

J. Fluids Eng 125(4), 605-612 (Aug 27, 2003) (8 pages) doi:10.1115/1.1593707 History: Received October 06, 2001; Revised January 22, 2003; Online August 27, 2003
Copyright © 2003 by ASME
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References

Figures

Grahic Jump Location
Schematics of round, radial, and wall-impinging jets
Grahic Jump Location
Measured, 24, and predicted tip penetrations of a round jet
Grahic Jump Location
Measured, 24, and predicted tip penetrations of wall-impinging jets for three impinging distances (L)
Grahic Jump Location
Ratios of tip penetrations of half-radial and wall-impinging jets to that of the round jet. (Cf=0.305,Ct=0.0113 for the round jet; Cf=0.305,Ct=0.0072 for the half-radial jet; Cf=0.25,Fm=1.32,Fn=0.098,m=−1.10,n=0.90 for curve A; Cf=0.305,Fm=1.11,Fn=0.0946,m=−1.12,n=1.01 for curve B).
Grahic Jump Location
Ratios of entrained mass of half-radial and wall-impinging jets to that of the round jet. (Cf=0.305,Ct=0.0113 for the round jet; Cf=0.305,Ct=0.0072 for the half-radial jet; Cf=0.25,Fm=1.32,Fn=0.098,m=−1.10,n=0.90 for curve A; Cf=0.305,Fm=1.11,Fn=0.0946,m=−1.12,n=1.01 for curve B).
Grahic Jump Location
Ratios of entrained mass of half-radial and wall-impinging jets to that of the round jet. (Cf=0.434,Ct=0.0161 for the round jet; Cf=0.305,Ct=0.0072 for the half-radial jet; Cf=0.25,Fm=1.32,Fn=0.098,m=−1.10,n=0.90 for curve A; Cf=0.305,Fm=1.11,Fn=0.0946,m=−1.12,n=1.01 for curve B).
Grahic Jump Location
Tip penetrations of the round and wall-impinging jets as a function of time. (Cf=0.305,Ct=0.0113 for the round jet; Cf=0.25,Fm=1.32,Fn=0.098,m=−1.10,n=0.90 for curve A; Cf=0.305,Fm=1.11,Fn=0.0946,m=−1.12,n=1.01 for curve B).
Grahic Jump Location
Entrained mass of the round and wall-impinging jets as a function of time (Cf=0.305,Ct=0.0113 for the round jet; Cf=0.25,Fm=1.32,Fn=0.098,m=−1.10,n=0.90 for curve A; Cf=0.305,Fm=1.11,Fn=0.0946,m=−1.12,n=1.01 for curve B).
Grahic Jump Location
Entrained mass of the round and wall-impinging jets as a function of time. (Cf=0.305,Ct=0.0113 for the round jet; Cf=0.25,Fm=1.32,Fn=0.098,m=−1.10,n=0.90 for curve A; Cf=0.305,Fm=1.11,Fn=0.0946,m=−1.12,n=1.01 for curve B).

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