File Entry: Comparison of solution of Saint-Venant equations by characteristics and finite difference methods for unsteady flow analysing in open channel

Created: 2017-02-05 13:43:09
Information Version 1 (of 1)

Version created on: 2017-02-05 13:43:09


Information Description

The unsteady flow can be analyzed by Saint-Venant equations. These equations can be solved by characteristics and finite difference methods. The Saint-Venant equations are changed into four complete differential equations in characteristics method and these equation are solved by drawing two characteristics lines. The Saint-Venant equations are changed into a set non-linear equations and are solved using Preissman scheme in finite difference method. This set equation are changed into linear equation using Newton-Rafson method and can be solved using Sparce method. In this research, the results of the two method were compared and this was shown that 1) these two methods can draw the surface profiles and flow hydro graph as well, 2) the finite difference method is more accurate than that one, 3) the mesh size in finite difference method can be larger than that one, and 4) the difference between two methods are increased by increasing the time and distance.


Information Download

Information License

All versions of this File are licensed under:

Information Credits (1)

(People/Groups)

Information Attributions (0)

(Workflows/Files)

None

Information Tags (0)

None

Log in to add Tags

Information Shared with Groups (0)

None

Information Featured In Packs (0)

None

Log in to add to one of your Packs

Information Attributed By (0)

(Workflows/Files)

None

Information Favourited By (0)

No one

Information Statistics

1272 viewings

475 downloads

[ see breakdown ]

 



Comments Comments (0)

No comments yet

Log in to make a comment


What is this?

Linked Data

Non-Information Resource URI: http://www.myexperiment.org/files/1909


Alternative Formats

HTML
RDF
XML