Front spreading with nonlinear sorption for oscillating flow
| Autor: | S.E.A.T.M. van der Zee, J. C. L. Meeussen, D. G. Cirkel |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2015 |
| Předmět: |
Physics
WIMEK business.industry Front (oceanography) Rarefaction Sorption Mechanics Bodemfysica en Landbeheer Soil Physics and Land Management Nonlinear system Flow conditions Optics thermal-energy storage groundwater propagation transport porous mediums Diffusion (business) Dispersion (water waves) business solute Mixing (physics) Water Science and Technology |
| Zdroj: | Water Resources Research, 51(4), 2986-2993 Water Resources Research 51 (2015) 4 |
| ISSN: | 0043-1397 |
| Popis: | In this paper, we consider dispersive and chromatographic mixing at an interface, under alternating flow conditions. In case of a nonreactive or linearly sorbing solute, mixing is in complete analogy with classical dispersion theory. For nonlinear exchange, however, oscillating convective flow leads to an alternation of sharpening (Traveling Wave TW) and spreading (Rarefaction Wave RW). As the limiting TW form is not necessarily accomplished at the end of the TW half cycle, the oscillating fronts show gradual continuous spreading that converges to a zero-convection nonlinear pure diffusion spreading, which is mathematically of quite different nature. This behavior is maintained in case the total (background) concentration differs at both sides of the initial exchange front. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
https://research.wur.nl/en/publications/front-spreading-with-nonlinear-sorption-for-oscillating-flow
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