# Simultaneous measurements of reactive scalar and velocity in a planar liquid jet with a second-order chemical reaction

Simultaneous measurements of reactive scalar and velocity in a planar liquid jet with a... This paper presents a new experimental approach for simultaneous measurements of velocity and concentration in a turbulent liquid flow with a chemical reaction. For the simultaneous measurements, we developed a combined probe consisting of an I-type hot-film probe and an optical fiber probe based on the light absorption spectrometric method. In a turbulent planar liquid jet with a second-order chemical reaction $$(\mathrm{A}+\mathrm{B}\rightarrow \mathrm{R})$$ , streamwise velocity and concentrations of all reactive species are measured by the combined probe. The turbulent mass fluxes of the reactive species are estimated from the simultaneous measurements. The results show that the influence of the chemical reaction on the turbulent mass flux of the reactant species near the jet exit is different from its influence in other regions, and the turbulent mass flux of the product species has a negative value near the jet exit and a positive value in other regions. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Experiments in Fluids Springer Journals

# Simultaneous measurements of reactive scalar and velocity in a planar liquid jet with a second-order chemical reaction

, Volume 53 (5) – Aug 30, 2012
15 pages

/lp/springer_journal/simultaneous-measurements-of-reactive-scalar-and-velocity-in-a-planar-JGjz0vLOwk
Publisher
Springer-Verlag
Subject
Engineering; Engineering Fluid Dynamics; Engineering Thermodynamics, Heat and Mass Transfer; Fluid- and Aerodynamics
ISSN
0723-4864
eISSN
1432-1114
D.O.I.
10.1007/s00348-012-1365-6
Publisher site
See Article on Publisher Site

### Abstract

This paper presents a new experimental approach for simultaneous measurements of velocity and concentration in a turbulent liquid flow with a chemical reaction. For the simultaneous measurements, we developed a combined probe consisting of an I-type hot-film probe and an optical fiber probe based on the light absorption spectrometric method. In a turbulent planar liquid jet with a second-order chemical reaction $$(\mathrm{A}+\mathrm{B}\rightarrow \mathrm{R})$$ , streamwise velocity and concentrations of all reactive species are measured by the combined probe. The turbulent mass fluxes of the reactive species are estimated from the simultaneous measurements. The results show that the influence of the chemical reaction on the turbulent mass flux of the reactant species near the jet exit is different from its influence in other regions, and the turbulent mass flux of the product species has a negative value near the jet exit and a positive value in other regions.

### Journal

Experiments in FluidsSpringer Journals

Published: Aug 30, 2012

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