Full metadata record
DC FieldValueLanguage
dc.contributor.authorHsu, CTen_US
dc.contributor.authorYeh, KCen_US
dc.date.accessioned2014-12-08T15:42:39Z-
dc.date.available2014-12-08T15:42:39Z-
dc.date.issued2002-03-10en_US
dc.identifier.issn0271-2091en_US
dc.identifier.urihttp://dx.doi.org/10.1002/fld.236en_US
dc.identifier.urihttp://hdl.handle.net/11536/28944-
dc.description.abstractThe one-dimensional Saint Venant equations for shallow-water flows are used to simulate the flood wave resulting from the sudden opening (or Closure) of a gate or collapse of a dam. An iterative explicit characteristics-based finite-difference method, based on the explicit finite analytic method, is proposed to discretize the dynamic equation, and the conservative control volume method is used for the discretization of the continuity equation. Surge and dam-break, flows in a horizontal, rectangular and frictionless channel were first considered, under such conditions the analytic solutions exist. For the surge simulation, numerical results of the proposed scheme are nearly identical to those obtained from the Preissmann scheme. For the dam-break simulations addressing three ratios of tailwater depth to water depth in the reservoir, the proposed scheme, as compared with the analytic solutions, yields better results than those obtained by the MacCormack scheme, the Gabutti scheme, and Jha et al.'s flux splitting scheme (J. Hydraul. Res. 1996, 34(5):605-621). As the depth ratio approaches zero, the accuracy of the proposed scheme is still satisfactory, even with the dry-bed condition. Investigations then were made for more realistic dam-break flow waves propogating in a sloped and frictional channel. Lacking analytic solutions, the simulating results from the proposed scheme as well as those from Chen's scheme (J. Hydraul. Dir. 1980; 106(HY4):535-556) were compared with the laboratory data collected in 19601961 at the United States Army Engineer Waterways Experiments Station (WES). An assumed initial flow was required for the computer-simulated condition in Chen's model. However, this is riot the case in the proposed model, i.e., a real dry-bed condition was set as the initial condition in the downstream channel of the dam. The consistency between the two simulated results is obvious compared with the experimental data. Copyright (C) 2002 John Wiley Sons, L.td.en_US
dc.language.isoen_USen_US
dc.subjectiterative explicit schemeen_US
dc.subjectsurgeen_US
dc.subjectdam-break waveen_US
dc.subjectexplicit finite analytic methoden_US
dc.subjectstaggered-griden_US
dc.titleIterative explicit simulation of 1D surges and dam-break flowsen_US
dc.typeArticleen_US
dc.identifier.doi10.1002/fld.236en_US
dc.identifier.journalINTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN FLUIDSen_US
dc.citation.volume38en_US
dc.citation.issue7en_US
dc.citation.spage647en_US
dc.citation.epage675en_US
dc.contributor.department土木工程學系zh_TW
dc.contributor.departmentDepartment of Civil Engineeringen_US
dc.identifier.wosnumberWOS:000174025400003-
dc.citation.woscount4-
Appears in Collections:Articles


Files in This Item:

  1. 000174025400003.pdf

If it is a zip file, please download the file and unzip it, then open index.html in a browser to view the full text content.