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An investigation into the effects of complex topography on particle dry deposition

Parker, Simon Toby (2004)
Ph.D. thesis, University of Birmingham.

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There is a requirement to predict the spatial variation of particle dry deposition following a nuclear accident. The interaction of landscape features, atmospheric flow and particle dry deposition has been investigated with this in mind. Wind tunnel studies have been used with computational fluid dynamics to predict the deposition rate relative to a flat landscape. Good quantitative agreement was seen for this relative deposition rate. Landscape shapes showed significant effects on deposition rate, increasing it by more than two in some cases, over limited areas. The effect of turbulence intensity, in the absence of landscape features, was also studied and a weak relationship to dry deposition was observed. Computational fluid dynamics methods used in wind tunnel comparisons were extended to a wide range of landscape cases. Deposition rates varied spatially around the landscape features. In general, for hills and ridges, deposition was seen to increase on the windward face, decrease on the leeward face and near wake, and increase in the further wake, before returning to the flat case value. The computational results were applied to a real landscape with the use of a customised geographical information system. Good general agreement was seen when compared with a test case.

Type of Work:Ph.D. thesis.
School/Faculty:Schools (1998 to 2008) > School of Geography, Earth & Environmental Sciences
Department:Division of Environmental Health and Risk Management
Additional Information:

Research from this thesis is published in P. J. Richards, A. D. Quinn, S. Parker A6m cube in an atmospheric boundary layer flow Part 2. Computational solutions Wind and Structures, 5(2-4) (2002) 177-192 Parker, ST, Kinnersley, RP, A computational and wind tunnel study of particle dry deposition in complex topography ATMOSPHERIC ENVIRONMENT 38 (2004), 3867-3878 6

Subjects:GB Physical geography
GE Environmental Sciences
TD Environmental technology. Sanitary engineering
Institution:University of Birmingham
Library Catalogue:Check for printed version of this thesis
ID Code:1471
This unpublished thesis/dissertation is copyright of the author and/or third parties. The intellectual property rights of the author or third parties in respect of this work are as defined by The Copyright Designs and Patents Act 1988 or as modified by any successor legislation. Any use made of information contained in this thesis/dissertation must be in accordance with that legislation and must be properly acknowledged. Further distribution or reproduction in any format is prohibited without the permission of the copyright holder.
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