Stably stratified flow and dense gas dispersion : based on the proceedings of a conference organized by the Institute of Mathematics and its Applications and held in Chester, April 1986
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Stably stratified flow and dense gas dispersion : based on the proceedings of a conference organized by the Institute of Mathematics and its Applications and held in Chester, April 1986
（The Institute of Mathematics and its Applications conference series, new ser.,
Clarendon Press , Oxford University Press, 1988
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"Conference on "Stably stratified flow and dense gas dispersion"--Pref.
Description and Table of Contents
Description
It is now generally recognized that the dispersion of gases denser than air is markedly different from the dispersion of passive pollutants in the atmosphere. Methods of predicting such dispersion are needed because of the wide range of hazardous materials that could form dense gas clouds if accidentally released. Consequently, various mathematical models for dense-gas dispersion have been developed in recent years. In the formulation of these models an understanding of various aspects of stably stratified flows is needed. Theoretical and experimental work on stratified flows can thus lead to improvements in the models. The papers in this volume range from basic studies of entrainment and turbulence in stably stratified flows to discussion of recent improvements in specific dispersion models. They demonstrate aspects of the basic flows, show the capabilities of some current models, and indicate possible directions of future research.
Table of Contents
- A review of some mixing experiments relevant to dense gas dispersion
- some measurements of turbulence length scales in the stably-stratified surface layer
- observations of internal gravity waves in the stably-stratified atmospheric boundary layer
- turbulence, waves and entrainment near density inversion layers
- development of density discontinuities in a turbulent fluid
- similarity solutions for two-dimensional steady gravity currents
- the spreading and mixing of a dense cloud in still air
- methods of validating models of dense gas dispersion
- analysis of Thorney Island data - variability and box models
- a model for gravity-dominated dispersion of dense-gas clouds
- recent developments on the FEM3 and SLAB atmospheric dispersion models
- length scales in stably stratified turbulent flows and their use in turbulence models
- the use of a three dimensional model for simulating Thorney Island field trials
- finite element calculations of transient dense gas dispersion
- stably stratified free surface shear layers with internal hydraulic jumps
- second-moment modelling of free buoyant shear flows - a comparison of parabolic and elliptic solutions.
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