Fast Approach for Unsteady Flow Routing in Complex River Networks Based on Performance Graphs

Autor:	Arturo S. Leon, Juan A. González-Castro, Elizabeth A. Kanashiro
Rok vydání:	2013
Předmět:	Computer science Hydraulics Mechanical Engineering Hydrological modelling Simulation modeling Topology law.invention Flooding (computer networking) Unsteady flow Routing (hydrology) law Boundary value problem Simulation Flow routing Water Science and Technology Civil and Structural Engineering
Zdroj:	Journal of Hydraulic Engineering. 139:284-295
ISSN:	1943-7900 0733-9429
DOI:	10.1061/(asce)hy.1943-7900.0000678
Popis:	This paper presents a new model for unsteady flow routing through dendritic and looped river networks based on performance graphs. The model builds on the application of a hydraulic performance graph (HPG) to unsteady flow routing introduced in a previous study and adopts the volume performance graph (VPG) introduced in another study. The HPG of a channel reach graphically summarizes the dynamic relation between the flow through and the stages at the ends of the reach under gradually varied flow (GVF) conditions, and the VPG summarizes the corresponding storage. Both the HPG and VPG are unique to a channel reach with a given geometry and roughness and can be computed decoupled from unsteady boundary conditions by solving the GVF equation for all feasible conditions in the reach. Hence, in the proposed approach, the performance graphs can be used for different boundary conditions without the need to recompute them. Previous models based on the performance graph concept were formulated for routing t...
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::244429f124ccc37d837baf5308fb261a https://doi.org/10.1061/(asce)hy.1943-7900.0000678 Zobrazit plný text záznamu Plný text ve formátu PDF