Using a 2-D simulation model, the spreading of a passive solute is investigated varying the transversal distribution assumed for the diffusion coefficient and the velocity. Using strongly different laws, the simulation results show a larger influence on the dispersion process by the velocity distribution, while the influence of the diffusion coefficient diffusion is very small, so that it is important just to catch the average value for this coefficient. Different transversal distribution of velocity produce values of maximum concentration with a scatter in the 30-40% range.

Sensitivity to diffusivity and velocity transversal distributions on solute dispersion in wide channels [Dispersione di soluti in alveo largo Influenza delle distribuzione trasversali di diffusività e di velocità]

LEOPARDI, Angelo;DI CRISTO, Cristiana
1999-01-01

Abstract

Using a 2-D simulation model, the spreading of a passive solute is investigated varying the transversal distribution assumed for the diffusion coefficient and the velocity. Using strongly different laws, the simulation results show a larger influence on the dispersion process by the velocity distribution, while the influence of the diffusion coefficient diffusion is very small, so that it is important just to catch the average value for this coefficient. Different transversal distribution of velocity produce values of maximum concentration with a scatter in the 30-40% range.
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11580/27885
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 0
social impact