Testing finite differencing schemes for the shallow water equations

dc.contributor.author	Peggion, Germana
dc.date.accessioned	2018-10-11T14:05:53Z
dc.date.available	2018-10-11T14:05:53Z
dc.date.issued	1987/10
dc.identifier	1680
dc.identifier.govdoc	SM-202
dc.identifier.uri	http://hdl.handle.net/20.500.12489/169
dc.description.abstract	The explicit, the semi-implicit, and the fractional step schemes are tested and compared in the
dc.description.abstract	solution of the shallow water equations. The explicit finite-difference formulation is the most accurate, but is restricted by a stability condition which is not suitable for long-term numerical simulations. The standard semi-implicit scheme requires the solution of an elliptic equation which is also timeconsuming.
dc.description.abstract	The fractional step method results in the least accurate, but computationally the most efficient solution.
dc.format	18 p. : ill. ; 5 fig.
dc.language	English
dc.publisher	NATO. SACLANTCEN
dc.relation.ispartofseries	ADA190518
dc.subject	Shallow water equations
dc.subject	Courant-Friedichs-Levy stability (CFL) condition
dc.title	Testing finite differencing schemes for the shallow water equations
dc.type	Scientific Memorandum (SM)