Refine
Year of publication
- 1992 (1) (remove)
Document Type
- Article (1) (remove)
Language
- English (1)
Has Fulltext
- yes (1)
Keywords
- nonlinear diffusion (1) (remove)
Faculty / Organisational entity
The performance of napkins is nowadays improved substantially by embedding granules of a superabsorbent into the cellulose matrix. In this paper a continuous model for the liquid transport in such an Ultra Napkin is proposed. Its mean feature is a nonlinear diffusion equation strongly coupled with an ODE describing a reversible absorbtion process. An efficient numerical method based on a symmetrical time splitting and a finite difference scheme of ADI-predictor-corrector type has been developed to solve these equations in a three dimensional setting. Numerical results are presented that can be used to optimize the granule distribution.