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Results are reported from an experimental program conducted on the response of a bottom-pivoted surface-piercing cylinder when subjected to 2 and 3-D irregular wave climates under both rigid and compliant conditions of restraint. The tests have been performed in the 3-D wave basin at the...
Four rainfall loss modules are compared within an overall catchment-scale (lumped) rainfall-streamflow modelling methodology which requires data only for basin rainfall, streamflow and air temperature. A common feature of the loss modules is the internal simulation of a temporally variable...
The calibration of mathematical models for groundwater flow is generally performed by minimizing an objective function that measures the fit between measured and computed data. This is a non-linear least squares problem which, because of the ill-posedness of groundwater identification, is...
The Hawkesbury-Nepean river system is one of the most important water resources of the Sydney region. It provides over 90% of Sydney's drinking water and receives effluent from over 40 sewage treatment plants. The river is also targeted as one of the venues for the Olympic 2000 sporting...
Natural cycles, particularly diurnal and seasonal cycles, dominate most environmental processes. Transients events are significant deviations from these usual variations. Transient events may have a duration from seconds to days and may occur naturally or as a result of man's activity. Events,...
In this paper, a conceptual model is proposed that evaluates suction and water retention between two spheres with different radii from a microscopic view point. Assuming soil is composed of spherical particles with various grain sizes, the suction and water retention can be quantitatively...
The Richards' equation is used as the basic paradigm for water flow in unsaturated soils. An empirical sink term is included to represent the uptake of water by the plant roots. This sink term incorporates a concept termed Evaporation Front which represents the drying upper layers and the...
For practical problems, efficient but accurate solution methods are usually preferred to computationally expensive but extremely accurate ones. The Muskingum-Cunge (M-C) method is an efficient technique often applied to solve flood routing problems. There are two free parameters in the M-C...
Heat flux (the product of air temperature and wind speed) plays an important role in the melting process of snow. The relationship between wind speed and the exchange volume of sensible heat can be considered using the vortex correlation method. Accordingly, a near linear relationship can be...
A numerical scheme based on the mixing cell concept is used to analyse multispecies solute transport under the condition of steady flow. Explicit examples are presented for the case of two chemical species that are reacting during transport. Also, unlike the standard mixing cell approach, the...
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