FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W196207890> ?p ?o ?g. }

• W196207890 abstract "The problem of modelling both the unsteady hydrodynamics and the bed morphological variations in natural channels is generally performed by solving the De Saint Venant balance equations for the liquid phase together with the Exner continuity equation for the sediments carried as bed-load. This thesis focuses on the development of an high-order accurate centred scheme of the finite volume type for the numerical solution of the coupled De Saint Venant-Exner system. A new scheme, called PRICE-C, is proposed. It solves the system of equations in a non-conservative form, however it has the important characteristic of reducing automatically to a conservative scheme if the underlying PDE system is a conservation law. It is applied to the shallow water equations in the presence of either a fix or a movable bed. The scheme is first introduced in a one-dimensional framework, and it is then extended to the two-dimensional case. The extension is not straightforward in the case of an unstructured mesh, since averages over suitable edge-based control volumes have to be performed. The scheme is extended to high order of accuracy in space and time via the ADER-WENO and MUSCL technique respectively for the one- and twodimensional case. The well-balanced property of the scheme is proven, i.e. the ability to reach steady states also in the presence of discontinuous water surface or discontinuous bottom profile. The scheme can deal with subcritical and supercritical flows, as well as transcritical situations. Moreover the proposed approach leads to a correct estimate of the celerity of surface discontinuities as well sediment bores and small bottom perturbations. The main characteristic of the scheme is its simplicity: it is based on a simple centred approach, that means that the knowledge of the eigenvalues of the matrix of the system is not required. This is important since the interaction between sediment transport and water flow not always admits detailed knowledge of the eigenstructure. Hence this scheme can be useful to engineers since they need simple numerical tools that can be easily used without entering in the mathematical detail of the differential hyperbolic system under consideration. Moreover the centred strategy gives generality to the scheme: in fact, it can be applied without modification to any kind of hyperbolic equations with non-conservative terms." @default.
• W196207890 created "2016-06-24" @default.
• W196207890 creator A5082110607 @default.
• W196207890 date "2010-11-22" @default.
• W196207890 modified "2023-09-27" @default.
• W196207890 title "Numerical Modelling of Alluvial Rivers by Shock Capturing Methods" @default.
• W196207890 hasPublicationYear "2010" @default.
• W196207890 type Work @default.
• W196207890 sameAs 196207890 @default.
• W196207890 citedByCount "1" @default.
• W196207890 countsByYear W1962078902020 @default.
• W196207890 crossrefType "book" @default.
• W196207890 hasAuthorship W196207890A5082110607 @default.
• W196207890 hasConcept C121332964 @default.
• W196207890 hasConcept C126255220 @default.
• W196207890 hasConcept C127313418 @default.
• W196207890 hasConcept C134306372 @default.
• W196207890 hasConcept C140295346 @default.
• W196207890 hasConcept C2524010 @default.
• W196207890 hasConcept C28826006 @default.
• W196207890 hasConcept C33923547 @default.
• W196207890 hasConcept C3445786 @default.
• W196207890 hasConcept C38349280 @default.
• W196207890 hasConcept C41008148 @default.
• W196207890 hasConcept C50478463 @default.
• W196207890 hasConcept C57879066 @default.
• W196207890 hasConceptScore W196207890C121332964 @default.
• W196207890 hasConceptScore W196207890C126255220 @default.
• W196207890 hasConceptScore W196207890C127313418 @default.
• W196207890 hasConceptScore W196207890C134306372 @default.
• W196207890 hasConceptScore W196207890C140295346 @default.
• W196207890 hasConceptScore W196207890C2524010 @default.
• W196207890 hasConceptScore W196207890C28826006 @default.
• W196207890 hasConceptScore W196207890C33923547 @default.
• W196207890 hasConceptScore W196207890C3445786 @default.
• W196207890 hasConceptScore W196207890C38349280 @default.
• W196207890 hasConceptScore W196207890C41008148 @default.
• W196207890 hasConceptScore W196207890C50478463 @default.
• W196207890 hasConceptScore W196207890C57879066 @default.
• W196207890 hasLocation W1962078901 @default.
• W196207890 hasOpenAccess W196207890 @default.
• W196207890 hasPrimaryLocation W1962078901 @default.
• W196207890 hasRelatedWork W1504348605 @default.
• W196207890 hasRelatedWork W1569615437 @default.
• W196207890 hasRelatedWork W1644504807 @default.
• W196207890 hasRelatedWork W1975576055 @default.
• W196207890 hasRelatedWork W2026176469 @default.
• W196207890 hasRelatedWork W2027710416 @default.
• W196207890 hasRelatedWork W2043146119 @default.
• W196207890 hasRelatedWork W2080950313 @default.
• W196207890 hasRelatedWork W2100286838 @default.
• W196207890 hasRelatedWork W2126391734 @default.
• W196207890 hasRelatedWork W2155785405 @default.
• W196207890 hasRelatedWork W2325293421 @default.
• W196207890 hasRelatedWork W2461331403 @default.
• W196207890 hasRelatedWork W2542357505 @default.
• W196207890 hasRelatedWork W2935091071 @default.
• W196207890 hasRelatedWork W2950135782 @default.
• W196207890 hasRelatedWork W3012388418 @default.
• W196207890 hasRelatedWork W3034067543 @default.
• W196207890 hasRelatedWork W3128771239 @default.
• W196207890 hasRelatedWork W883733594 @default.
• W196207890 isParatext "false" @default.
• W196207890 isRetracted "false" @default.
• W196207890 magId "196207890" @default.
• W196207890 workType "book" @default.