Flow Adaptive Schemes
Auteur : Kutija Vendrana
![Couverture de l’ouvrage Flow Adaptive Schemes](https://images.lavoisier.fr/couvertures/1317315640.jpg)
The current rapid development of hydroinformatic systems demands further improvements in numerical modelling, and thus in the computational hydraulics which underlies such modelling. This work is a study in the development of flow adaptive numerical schemes in computational hydraulics that are directed to enhancing modelling capabilities. The general domain of the work is unsteady nearly horizontal flow in one and two space dimensions. It follows different advances in computational hydraulics situated in different physical situations. Four particular examples have been studied.; additional flow resistance due to flexible vegetation, one dimensional supercritical flow, flow in networks of channels and nearly horizontal two dimensional flow.
All of the schemes thereby developed show similar features, employing intermideate results of computation in order to achieve a better performance. By adopting the point of view of cybernetics, these numerical schemes are examined as control systems. This provides a generalisation of features common to the notion of flow-adaptivity. For the purpose of characterising flow adaptive schemes, a process of deconstruction was followed, starting with the most simple example of an implicit numerical scheme.
Date de parution : 07-2017
17.8x25.4 cm
Date de parution : 10-2007
Ouvrage de 540 p.
17.8x25.4 cm
Thème de Flow Adaptive Schemes :
Mots-clés :
Finite Difference Method; Eddy Viscosity Approximation; Dissipative Interfaces; Computational Hydraulics; Double Sweep Algorithm; De Saint Venant Equations; Algorithmic Structures; Supercritical Flow; Subcritical Flow; Finite Difference Scheme; Flexible Vegetation; Supercritical Flow Conditions; Pure Advection Equation; Reed Position; Additional Flow Resistance; Preissmann Scheme; Free Surface Flow Simulations; Cyclic Part; Froude Number; Incidence Matrix; Adaptive Control System; Rigid Vegetation; Test L3; Bernoulli Equation; Forward Time Direction