By M. El-Amin
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Extra resources for Advanced Topics in Mass Transfer
2008). Analytical and experimental investigation of small-scale unintended releases of hydrogen, Int. J. Hydrogen Energy 33: 1435–1444. Hussein, J. , Capp, S. P. & George, W. K. (1994). Velocity measurements in a high-reynolds-number, momentum-conserving, axisymmetric, turbulent jet, J. Fluid Mechanics 258: 31–75. Lessen, M. (1978). On the power laws for turbulent jets, wakes and shearing layers and their relationship to the principal of marginal instability, J. Fluid Mech 88: 535–540. List, E.
This kind of buoyant jets ’plume’ is classed as non-Boussinesq; since the initial fractional density difference is high, which is deﬁned as, Δρ0 = (ρ∞ − ρ0 ) , where ρ0 is the initial centerline density (density at the source) and ρ∞ is the ambient density. 06 for C2 H2 − N2 . 05. In general, one can say that the Boussinesq approximation is valid for small initial fractional density difference, Δρ0 /ρ∞ << 1. However, in these cases of invalid Boussinesq approximation a density equation must be used.
104: 14271–14281. Woods, A. W. (1997). A note on non-boussinesq plumes in an incompressible stratiﬁed environment, J. Fluid Mechanics 345: 347–356. , Campbell, I. & Jiang, L. Y. (2002). Estimation of the turbulent schmidt number from experimental proﬁles of axial velocity and concentration for high-reynolds-number jet ﬂows, Canadian Aeronautics Space Journal 48: 195–200. 3 Controlled Mixing and Transport in Comb-Like and Random Jet Array Stirring Systems S. Delbos1 , E. Chassaing1 , P. P. Grand2 , V.
Advanced Topics in Mass Transfer by M. El-Amin