Errors of kinematic-wave and diffusion-wave approximations for steady-state overland flows

Auteur(s) et Affiliation(s)

SINGH, V.P.

Dept. of Civil and Environmental Engineering, Louisiana State University, Baton Rouge, Etats-Unis

Description :
Steady-state flows occur in a variety of geophysical processes. Their mathematical treatment is usually based on either the dynamic-wave equations or their approximations: kinematic wave (KW) and diffusion wave (DW). Furthermore, when doing hydrologic modeling it is not evident if the KW and DW approximations are valid for the entire length of the channel or a portion thereof. The objective of this study is to derive, under simplified conditions, errors for the kinematic-wave (KW) or the diffusion-wave (DW) approximations as a function of space.

Type de document :
Article de périodique

Source :
Catena (Giessen), issn : 0341-8162, 1996, vol. 27, n°. 3-4, p. 209-227, Collation : Illustration, Références bibliographiques : 7 ref.

Date :
1996

Editeur :
Pays édition : Allemagne, Cremlingen-Destedt, Catena

Langue :
Anglais