Abstract
This experimental investigation determines the effect of the various parameters of a subsonic axisymmetric jet upon a fast chemical reaction between ozone contained dilutely in the primary jet and diluted nitric oxide being entrained from the ambient fluid. Radial profiles of ozone densities are determined from absorption measurements of a thin beam of ultraviolet light which is probed across the jet. Data have been obtained for five jet Reynolds numbers between 4000 and 32 000 to reflect variations in both gas density and nozzle velocity; the data confirm Reynolds number independence of reactant concentration profiles to within experimental accuracy. When the non-dimensional chemical reaction rate exceeds a determined value, the ozone profiles are observed to be independent of further increases in the reaction speed. The measured ozone concentration profiles are related directly to the molecular-scale mixing in the jet and to mixing intermittency in the mixing zone in particular.
Publisher
Cambridge University Press (CUP)
Subject
Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics
Reference19 articles.
1. Wohl, K. , Gazley, C. & Kapp, N. 1949 Diffusion flames. 3rd Int. Symp. Combustion ,p.288.
2. Davies, P. O. A. L. , Fisher, M. & Barratt, M. 1963 The characteristics of the turbulence in the mixing region of a round jet.J. Fluid Mech. 15,337.
3. Kuethe, A. 1935 Investigations of the turbulent mixing regions formed by jets.A.S.M.E. Trans. 2,A–87.
4. Jones, E. J. & Wulf, O. R. 1937 The absorptive coefficient of nitrogen pentoxide in the ultraviolet and the visible absorption spectrum of NO3.J. Chem. Phys. 5,873.
5. Hottel, H. C. 1952 Burning in laminar and turbulent fuel jets. 4th Int. Symp. Combustion ,p.97.
Cited by
16 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献