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Centreline velocity decay measurements in low-velocity axisymmetric jets

Published online by Cambridge University Press:  10 September 1997

TOR G. MALMSTRÖM
Affiliation:
Division of Building Services Engineering, Royal Institute of Technology (KTH), S-10044 Stockholm, Sweden
ALLAN T. KIRKPATRICK
Affiliation:
Mechanical Engineering Department, Colorado State University, Fort Collins, CO 80523, USA
BRIAN CHRISTENSEN
Affiliation:
Mechanical Engineering Department, Colorado State University, Fort Collins, CO 80523, USA
KEVIN D. KNAPPMILLER
Affiliation:
Mechanical Engineering Department, Colorado State University, Fort Collins, CO 80523, USA

Abstract

The streamwise velocity profiles of low-velocity isothermal axisymmetric jets from nozzles of different diameters were measured and compared with previous experimental data. The objective of the measurements was to examine the dependence of the diffusion of the jet on the outlet conditions. As the outlet velocity was decreased, the centreline velocity decay coefficient began to decrease at an outlet velocity of about 6 m s−1.

Type
Research Article
Copyright
© 1997 Cambridge University Press

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