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dc.contributor.authorLien, HCen_US
dc.contributor.authorHsieh, TYen_US
dc.contributor.authorYang, JCen_US
dc.date.accessioned2014-12-08T15:46:22Z-
dc.date.available2014-12-08T15:46:22Z-
dc.date.issued1999-07-15en_US
dc.identifier.issn0271-2091en_US
dc.identifier.urihttp://hdl.handle.net/11536/31207-
dc.identifier.urihttp://dx.doi.org/10.1002/(SICI)1097-0363(19990715)30:5<557en_US
dc.description.abstractThe objective of this paper is to present a methodology of using a two-step split-operator approach for solving the shallow water flow equations in terms of an orthogonal curvilinear co-ordinate system. This approach is in fact one kind of the so-called fractional step method that has been popularly used for computations of dynamic flow. By following that the momentum equations are decomposed into two portions, the computation procedure involves two steps. The first step (dispersion step) is to compute the provisional velocity in the momentum equation without the pressure gradient. The second step (propagation step) is to correct the provisional velocity by considering a divergence-free velocity field, including the effect of the pressure gradient. This newly proposed method, other than the conventional split-operator methods, such as the projection method, considers the effects of pressure gradient and bed friction in the second step. The advantage of this treatment is that it increases flexibility, efficiency and applicability of numerical simulation for various hydraulic problems. Four cases, including back-water flow, reverse flow, circular basin flow and unsteady flow, have been demonstrated to show the accuracy and practical application of the method. Copyright (C) 1999 John Wiley & Sons, Ltd.en_US
dc.language.isoen_USen_US
dc.subjecttwo-step split-operator approachen_US
dc.subjectfractional step methoden_US
dc.subjectprojection methoden_US
dc.subjectshallow water flow equationsen_US
dc.subjectnumerical simulationen_US
dc.titleUse of two-step split-operator approach for 2D shallow water flow computationen_US
dc.typeArticleen_US
dc.identifier.doi10.1002/(SICI)1097-0363(19990715)30:5<557en_US
dc.identifier.journalINTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN FLUIDSen_US
dc.citation.volume30en_US
dc.citation.issue5en_US
dc.citation.spage557en_US
dc.citation.epage575en_US
dc.contributor.department土木工程學系zh_TW
dc.contributor.departmentDepartment of Civil Engineeringen_US
dc.identifier.wosnumberWOS:000081299300006-
dc.citation.woscount2-
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