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Boundary-layers around bladed aquatic macrophytes


Stevens, CL and Hurd, CL, Boundary-layers around bladed aquatic macrophytes, Hydrobiologia, 346, (1-3) pp. 119-128. ISSN 0018-8158 (1997) [Refereed Article]

Copyright Statement

Copyright 1997 Kluwer Academic Publishers

DOI: doi:10.1023/A:1002914015683


This paper describes a model of the diffusive boundary-layer around an aquatic macrophyte blade. Nutrient uptake at the base of the modelled boundary-layerwas examined using previously published laboratory data. The analysis showed that, over the outer velocity range 0.010.16 ms-1, nutrient uptake varied between that predicted by flatplate boundary-layer theory and that expected with no mean advection. A ratio of theoretical and actual nutrient uptake rates was defined as a means of categorising the transition between the two transportmodels. The modelling was extended to show how fluctuating boundary conditions may enhance nutrient uptake by the macrophyte; the scenario examined here suggested that at otherwise low outer velocities, periodic stripping of the boundary-layer by passing waves increased nutrient uptake by a factor of 10.

Item Details

Item Type:Refereed Article
Keywords:kelp, Macrocystis, hydrodynamics, fluid mechanics, boundary-layers, nutrient uptake, diffusion
Research Division:Biological Sciences
Research Group:Plant biology
Research Field:Phycology (incl. marine grasses)
Objective Division:Expanding Knowledge
Objective Group:Expanding knowledge
Objective Field:Expanding knowledge in the biological sciences
UTAS Author:Hurd, CL (Professor Catriona Hurd)
ID Code:93163
Year Published:1997
Web of Science® Times Cited:59
Deposited By:IMAS Research and Education Centre
Deposited On:2014-07-14
Last Modified:2014-08-04

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