NDLI: Large-Eddy Simulation of Dispersion from Surface Sources in Arrays of Obstacles

Content Provider	Springer Nature Link
Author	Boppana, V. B. L. Xie, Zheng Tong Castro, Ian P.
Copyright Year	2010
Abstract	Towards meeting the objective of simulating heat transfer processes in urban areas, the study of dispersion from a scalar (ground) surface area source has been addressed as a first step, since dispersion from such a source is in some ways analogous to heat transfer from the surface. Two different urban-like geometries are considered: an array with cubes of equal height and an array with random height cuboids. Some point measurement dispersion experiments in a wind tunnel have previously been carried out in identical arrays using a naphthalene sublimation technique. Large-eddy simulations (LES) of these experiments have been performed as a validation study and the details, presented here, demonstrate the influence of the roughness morphology on the dispersion processes and the power of LES for obtaining physically important scalar turbulent flux information.
Starting Page	433
Ending Page	454
Page Count	22
File Format	PDF
ISSN	00068314
Journal	Boundary-Layer Meteorology
Volume Number	135
Issue Number	3
e-ISSN	15731472
Language	English
Publisher	Springer Netherlands
Publisher Date	2010-04-08
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Area source Dispersion Passive scalar Urban canopy Atmospheric Protection/Air Quality Control/Air Pollution Meteorology/Climatology
Content Type	Text
Resource Type	Article
Subject	Atmospheric Science

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Large-Eddy Simulation of Dispersion from Surface Sources in Arrays of Obstacles