caa a22 4500 606166963 CHVBK 20210128100700.0 cr unu---uuuuu 210128e20150401xx s 000 0 eng 10.1007/s10665-014-9737-y doi (NATIONALLICENCE)springer-10.1007/s10665-014-9737-y Asymptotics of averaged turbulent transfer in canopy flows [Elektronische Daten] [F. Mohammed, D. Strunin, D. Ngo-Cong, T. Tran-Cong] We formulate and analyse a long-time asymptotic model of dispersion in turbulent canopy flows, of an urban or industrial nature. The model is formulated in terms of the concentration averaged across the flow, for example over river depth. The general approach that laid a firm foundation for the averaging procedure was proposed by Roberts and co-authors in the late 1980s. We derive an evolution partial differential equation for the averaged concentration, involving first, second and higher derivatives with respect to spatial coordinates. The coefficients of the equation are derived and analysed against the parameters characterising the turbulent flow. In particular, we show that, in the limit of large flow depths, the values of the coefficients coincide with those obtained earlier for the flow over a smooth bottom. Springer Science+Business Media Dordrecht, 2014 Canopy nationallicence Dispersion nationallicence Roughness nationallicence Turbulent flow nationallicence Mohammed F. Faculty of Health, Engineering and Sciences and Computational Engineering and Science Research Centre, University of Southern Queensland, 4350, Toowoomba, QLD, Australia aut Strunin D. Faculty of Health, Engineering and Sciences and Computational Engineering and Science Research Centre, University of Southern Queensland, 4350, Toowoomba, QLD, Australia aut Ngo-Cong D. Faculty of Health, Engineering and Sciences and Computational Engineering and Science Research Centre, University of Southern Queensland, 4350, Toowoomba, QLD, Australia aut Tran-Cong T. Faculty of Health, Engineering and Sciences and Computational Engineering and Science Research Centre, University of Southern Queensland, 4350, Toowoomba, QLD, Australia aut Journal of Engineering Mathematics Springer Netherlands 91/1(2015-04-01), 81-104 0022-0833 91:1<81 2015 91 10665 https://doi.org/10.1007/s10665-014-9737-y text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s10665-014-9737-y text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Mohammed F. Faculty of Health, Engineering and Sciences and Computational Engineering and Science Research Centre, University of Southern Queensland, 4350, Toowoomba, QLD, Australia aut NATIONALLICENCE 700 1- Strunin D. Faculty of Health, Engineering and Sciences and Computational Engineering and Science Research Centre, University of Southern Queensland, 4350, Toowoomba, QLD, Australia aut NATIONALLICENCE 700 1- Ngo-Cong D. Faculty of Health, Engineering and Sciences and Computational Engineering and Science Research Centre, University of Southern Queensland, 4350, Toowoomba, QLD, Australia aut NATIONALLICENCE 700 1- Tran-Cong T. Faculty of Health, Engineering and Sciences and Computational Engineering and Science Research Centre, University of Southern Queensland, 4350, Toowoomba, QLD, Australia aut NATIONALLICENCE 773 0- Journal of Engineering Mathematics Springer Netherlands 91/1(2015-04-01), 81-104 0022-0833 91:1<81 2015 91 10665