Low-dimensional boundary-layer model of turbulent dispersion in a channel
Files
(Published version)
Date
2009
Authors
Strunin, D.
Roberts, A.
Editors
Ao, S.I.
Gelman, L.
Hukins, D.W.L.
Hunter, A.
Korsunsky, A.M.
Gelman, L.
Hukins, D.W.L.
Hunter, A.
Korsunsky, A.M.
Advisors
Journal Title
Journal ISSN
Volume Title
Type:
Conference paper
Citation
World Congress on Engineering: WCE 2009 : Vol II, 2009, pp.1-5
Statement of Responsibility
D.V. Struin, A. J. Roberts
Conference Name
World Congress on Engineering (2009 : London, UK)
Abstract
We analyse dispersion of contaminants in turbulent boundary layer using centre manifold technique. The method describes long-term asymp- totics of the contaminant concentration as it becomes spread across the entire layer and is weakly distorted by the velocity shear. The dispersion is investigated in two cases: (a) logarithmic and (b) power veloc- ity profile across the layer according to a traditional and a more recent theory respectively. We deduce an advection-diffusion equation for the depth-average concentration in each case. The equation represents a leading approximation of the dynamics and can be ex- tended to include higher-order derivatives for better precision.
School/Discipline
Dissertation Note
Provenance
Description
Access Status
Rights
© Copyright International Association of Engineers. Provided through DOAJ whose site and its metadata are licensed under CC BY-SA