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Title: On inducing equations for vegetation resistance
Authors: Baptist, M.J.
Babovic, V. 
Uthurburu, J.R.
Keijzer, M.
Uittenbogaard, R.E.
Mynett, A.
Verwey, A.
Keywords: Genetic programming
Knowledge discovery
Issue Date: 2007
Source: Baptist, M.J.,Babovic, V.,Uthurburu, J.R.,Keijzer, M.,Uittenbogaard, R.E.,Mynett, A.,Verwey, A. (2007). On inducing equations for vegetation resistance. Journal of Hydraulic Research 45 (4) : 435-450. ScholarBank@NUS Repository.
Abstract: The paper describes the process of induction of equations for the description of vegetation-induced roughness from several angles. Firstly, it describes two approaches for obtaining theoretically well-founded analytical expressions for vegetation resistance. The first of the two is based on simplified assumptions for the vertical flow profile through and over vegetation, whereas the second is based on an analytical solution to the momentum balance for flow through and over vegetation. In addition to analytical expressions the paper also outlines a numerical 1-DV k-ε turbulence model which includes several important features related to the influence plants exhibit on the flow. Last but not least, the paper presents a novel way of applying genetic programming to the results of the 1-DV model, in order to obtain an expression for roughness based on synthetic data. The resulting expressions are evaluated and compared with an independent data set of flume experiments. © 2007 International Association of Hydraulic Engineering and Research.
Source Title: Journal of Hydraulic Research
ISSN: 00221686
Appears in Collections:Staff Publications

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