View source for Numerical meander models

<Forecasterlink type="getToolInfoBox" code="21" />
=Numerical meander models=
==Type==
Hydromorphological models

==Basic principles==
Linearized fundamental equations for conservation of water mass and water flow momentum, spatially averaged over water depth and time-averaged over all turbulent fluctuations. Linearized parameterized relation for effect of helical flow on bed shear stress direction.
Empirical bank migration predictor.
Possibly linearized equilibrium sediment transport predictor. Possibly linearized empirical relation for effect of sloping beds on sediment transport magnitude and direction. Linearized Exner equation for conservation of sediment mass.

==Outputs==
Flow velocities, water depths, water levels, flow shear stresses.
Sediment transport, bed level, bank erosion, meander migration.

==Rivertypes==

<Forecasterlink type="getRivertypesForTool" code="21"/>
==Related Pressures==

<Forecasterlink type="getPressuresForTool" code="21"/>
==Related Measures==

<Forecasterlink type="getMeasuresForTool" code="21" />


==Useful references==
===Selected software systems===
MIANDRAS

===Theoretical background===
Crosato A. (1989): Meander migration prediction. Excerpta, GNI, Vol.4, Libreria Progetto, Padova, pp.169-198.

Crosato: A. (2008): Analysis and modelling of river meandering. PhD thesis, Delft University of Technology, IOS Press, ISBN 978-1-58603-915-8.

Ikeda S., Parker G., Sawai K. (1981): Bend theory of river meanders, Part 1, Linear development. J. Fluid Mech., vol.112, pp.363-377.

===Sample applications===
 

[[Category:Tools]][[Category:Hydromorphological models]]