Skip to main content

Hierarchy of models for meandering rivers and related morphodynamic processes

Publication ,  Journal Article
Camporeale, C; Perona, P; Porporato, A; Ridolfi, L
Published in: Reviews of Geophysics
March 1, 2007

We review the importance of the physical mechanisms involved in river meandering by comparing some existing linear models and extensions thereof. Such models are hierarchically derived from a common and general mathematical framework and then analyzed with a detailed discussion of the physical processes and relevant hypotheses that are involved. Experiments and field data are also used to discuss the related morphodynamic processes. The analysis of the models shows the importance of the closure of secondary currents especially in the modeling of eddy viscosity. This aspect confirms the usefulness of using simplified models for some practical applications, provided the secondary currents are modeled in detail. On the other hand, the free response of the sediments, the phase lag of secondary currents, and the momentum redistribution due to the coupling between the main and the transverse flow are shown to be less relevant. Hence the second-order models, which neglect the effect of superelevation induced by the topography-driven lateral flow on the longitudinal flow, can reasonably be considered a good approximation for both predictive analysis and the computation of the resonant conditions. Finally, the analysis of higher harmonics suggests that the multilobed pattern can intrinsically be present in both second- and fourth-order models. Copyright 2007 by the American Geophysical Union.

Duke Scholars

Published In

Reviews of Geophysics

DOI

ISSN

8755-1209

Publication Date

March 1, 2007

Volume

45

Issue

1

Related Subject Headings

  • Meteorology & Atmospheric Sciences
  • 51 Physical sciences
  • 40 Engineering
  • 37 Earth sciences
  • 09 Engineering
  • 04 Earth Sciences
  • 02 Physical Sciences
 

Citation

APA
Chicago
ICMJE
MLA
NLM
Camporeale, C., Perona, P., Porporato, A., & Ridolfi, L. (2007). Hierarchy of models for meandering rivers and related morphodynamic processes. Reviews of Geophysics, 45(1). https://doi.org/10.1029/2005RG000185
Camporeale, C., P. Perona, A. Porporato, and L. Ridolfi. “Hierarchy of models for meandering rivers and related morphodynamic processes.” Reviews of Geophysics 45, no. 1 (March 1, 2007). https://doi.org/10.1029/2005RG000185.
Camporeale C, Perona P, Porporato A, Ridolfi L. Hierarchy of models for meandering rivers and related morphodynamic processes. Reviews of Geophysics. 2007 Mar 1;45(1).
Camporeale, C., et al. “Hierarchy of models for meandering rivers and related morphodynamic processes.” Reviews of Geophysics, vol. 45, no. 1, Mar. 2007. Scopus, doi:10.1029/2005RG000185.
Camporeale C, Perona P, Porporato A, Ridolfi L. Hierarchy of models for meandering rivers and related morphodynamic processes. Reviews of Geophysics. 2007 Mar 1;45(1).

Published In

Reviews of Geophysics

DOI

ISSN

8755-1209

Publication Date

March 1, 2007

Volume

45

Issue

1

Related Subject Headings

  • Meteorology & Atmospheric Sciences
  • 51 Physical sciences
  • 40 Engineering
  • 37 Earth sciences
  • 09 Engineering
  • 04 Earth Sciences
  • 02 Physical Sciences