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- W4220697776 abstract "<p>An Eulerian model for the dispersion of a passive tracer over a simplified slope driven by a thermally driven circulation is presented here. The source of the tracer is point-like and the emission continuous, the local circulation is a pure anabatic flow modelled following Prandtl&#8217;s (1942) steady-state model. The eddy diffusivity is considered constant along the vertical direction. The incapability of a classical Gaussian model to forecast the concentration field is shown through a comparison between the results of the Gaussian and Eulerian models. A study of the sensitivity of the concentration field to the position of the source and to the characteristics of the wind field is proposed. Moreover, a relationship between the position and the intensity of the ground concentration field, together with its dependence on the environmental parameters is found.&#160;</p><p>Prandtl L. 1942. F&#252;hrer durch die Str&#246;mungslehre, Chapter 5. Vieweg und Sohn: Braunschweig, Germany. [English translation: Prandtl L. 1952. Mountain and valley winds in stratified air, in Essentials of Fluid Dynamics: 422&#8211;425. Hafner Publishing Company: New York, NY]<br><br></p><p>&#160;</p>" @default.
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- W4220697776 date "2022-03-27" @default.
- W4220697776 modified "2023-10-16" @default.
- W4220697776 title "Numerical modelling of passive tracer dispersion from a continuous point source in a steady thermally driven slope wind" @default.
- W4220697776 doi "https://doi.org/10.5194/egusphere-egu22-4122" @default.
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