Predictions based on lagrangians quantities of turbulence
DOI:
https://doi.org/10.5902/2179460X25030Abstract
The lateral diffusion coefficient σy is a critical parameter in the Gaussian plume diffusion model.
In the present work, values for the Lagrangian integral time scale, L, are obtained and it is shown that these quantities together with σy determine good theoretical values for σy. This analysis sugests that the shape of the Lagrangian autocorrelation function is independent of the stability in the low atmosphere and the L values could carry in itself the structure of the local Lagrangian turbulence.
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References
DRAXLER, R.R. Determination of atmospheric diffusion parameters. Atmospheric Enviroment, 10:99-105, 1976.
FUQUAY, J; SIMPSON, C.L. & HINDS, W.T. Prediction of environmental exposures from sources near ground based on Hanford experimental dota. J. Appl. Meteor., 3:761-70, 1964.
GIFFORD, F.A. Turbulent diffusion-typing schemes: a review. Nuclear Safety, 17: 25-42, 1976.
HAUGEN, D.A. Some lagrangian properties of turbulence deduced from atmospheric diffusion experiments. J. Applied Met., 5: 646-52, 1966.
NEUMANN, J. Some observations on the simple exponential function as lagrangian velocity correlation function in turbulent diffusion. Atmospheric Environment, 12:1965-B, 1978.
TAYLOR, G. I. Diffusion by continuous movements. Proc. Lond. Math. Soc. 20:196-202,1921.
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