Superposition principle in soil physics
Parlange, J.Y., Hogarth, W.L., Ross, P.J., Haverkamp, R. and Smettem, K.R.J.ORCID: 0000-0003-2650-4429
(1994)
Superposition principle in soil physics.
In: Proceedings of the Water Down Under 1994 Conference. Part 3, 21 - 25 November, Adelaide, Australia
pp. 171-175.
Abstract
Analytical solutions are usually easy to apply and useful to understand processes. Unfortunately the non-linearity of Richard's equation restricts exact solutions to a few soil-water diffusivities. A general superposition principle is presented here which can be applied for any appropriate soil-water diffusivity. The resulting solutions are, however, approximate and are applicable in general to describe processes lasting a short time only. For this reason the method seems ideally suited to describe the interaction of abrupt fronts with surfaces. Two examples are considered; one involving a plane front, the other a curved front, to illustrate the simplicity and accuracy of the method.
Item Type: | Conference Paper |
---|---|
Publisher: | Institution of Engineers, Australia |
URI: | http://researchrepository.murdoch.edu.au/id/eprint/38250 |
![]() |
Item Control Page |