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Two-dimensional simulation model for contour basin layouts in southeast Australia II: Irregular shape and multiple basins

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Title Two-dimensional simulation model for contour basin layouts in southeast Australia II: Irregular shape and multiple basins
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Creator Khanna, M
Malano, H. M
Fenton, J. D
Turral, H
 
Subject Two-dimensional flow; Simulation models; Australia; Basins; Irrigation
 
Description Not Available
The development of a two-dimensional simulation model for single regular shape ~rectangular! contour basin irrigation layout
in southeast Australia is reported in a companion paper. Contour basin layouts as used in Southeast Australia are often irregular in shape
and laid out as multiple basin systems. Irrigation of these basins is carried out sequentially involving back flow to the supply channel and
inter-basin flow. This paper presents the extension of the earlier model to incorporate irregular shape basins and multiple basin operation.
The governing equation is solved by adopting a ‘‘split-operator approach’’ using the method of characteristics coupled with twodimensional
Taylor series expansion for interpolation and calculation of diffusion terms. The numerical solution scheme is based on a grid
of quadrilaterals for spatial discretization, to provide geometric flexibility. Infiltration is computed using either the empirical Kostiakov–
Lewis equation or the quasianalytical Parlange equation. The model was validated against field data collected from irrigation events
monitored on a commercial laser leveled contour layout consisting of five basin
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Date 2024-04-24T12:21:10Z
2024-04-24T12:21:10Z
2003-09-01
 
Type Article
Journal
Research Paper
 
Identifier Khanna, M., Malano, H. M., Fenton, J. D and Turral, H. (2003). Two-dimensional simulation model for contour basin layouts in southeast Australia II: Irregular shape and multiple basins." J. Irrig. Drain. ASCE. 129(5): 317-325
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http://krishi.icar.gov.in/jspui/handle/123456789/82346
 
Language English
 
Relation Not Available;
 
Publisher ASCE