FPIV study of gas entrainment by a hollow cone spray submitted to variable density

FPIV study of gas entrainment by a hollow cone spray submitted to variable density The gas entrainment in a hollow cone spray submitted to variable density is studied experimentally in order to better understand the effect on mixture formation. Particle image velocimetry on fluorescent tracers, associated with a specific processing of the instantaneous velocity fields have been applied to obtain measurement in the close vicinity of the spray edge. In the “quasi-steady” region of the spray, important effect of the ambient density on the mass flow rate of entrained gas $$ (\ifmmode\expandafter\dot\else\expandafter\.\fi{m}_{{\text{e}}} ) $$ have been pointed out. The axial evolution of $$ \ifmmode\expandafter\dot\else\expandafter\.\fi{m}_{{\text{e}}} $$ is in good agreement with an integral model that takes the momentum exchange between phases into account. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Experiments in Fluids Springer Journals

FPIV study of gas entrainment by a hollow cone spray submitted to variable density

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Publisher
Springer-Verlag
Copyright
Copyright © 2007 by Springer-Verlag
Subject
Engineering; Engineering Fluid Dynamics; Fluid- and Aerodynamics; Engineering Thermodynamics, Heat and Mass Transfer
ISSN
0723-4864
eISSN
1432-1114
D.O.I.
10.1007/s00348-007-0304-4
Publisher site
See Article on Publisher Site

Abstract

The gas entrainment in a hollow cone spray submitted to variable density is studied experimentally in order to better understand the effect on mixture formation. Particle image velocimetry on fluorescent tracers, associated with a specific processing of the instantaneous velocity fields have been applied to obtain measurement in the close vicinity of the spray edge. In the “quasi-steady” region of the spray, important effect of the ambient density on the mass flow rate of entrained gas $$ (\ifmmode\expandafter\dot\else\expandafter\.\fi{m}_{{\text{e}}} ) $$ have been pointed out. The axial evolution of $$ \ifmmode\expandafter\dot\else\expandafter\.\fi{m}_{{\text{e}}} $$ is in good agreement with an integral model that takes the momentum exchange between phases into account.

Journal

Experiments in FluidsSpringer Journals

Published: Apr 25, 2007

References

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