Evaluating partial dam breach using the CBS method in shallow waters
by Gustavo Braz Kurz; Renato Vaz Linn; Daniela Buske; Régis Sperotto de Quadros
International Journal of Hydromechatronics (IJHM), Vol. 7, No. 3, 2024

Abstract: In this paper, a numerical solver for the computation of dam breach problems is developed and presented. The flow is modelled by shallow water equations considering an incompressible fluid flow and numerically solved by means of the finite element method (FEM). For a temporal solution, the characteristic-based split (CBS) scheme is used, introducing modifications in the advective term. A linear triangular element is considered for space interpolation on unstructured meshes thus allowing representation of complex geometries. The numerical simulation of dam breach problems encompass some numerical difficulties such as the propagation of discontinuities on the flow and unsteady effects, which are handled by the presented method considering an artificial diffusion term. Studies are ongoing presenting a dam breach problem considering four different failure cases. The total failure case is compared with experimental data validating the methodology. Further failure investigations are presented comparing the differences in flow dynamics related to the total breach case.

Online publication date: Fri, 23-Aug-2024

The full text of this article is only available to individual subscribers or to users at subscribing institutions.

 
Existing subscribers:
Go to Inderscience Online Journals to access the Full Text of this article.

Pay per view:
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.

Complimentary Subscribers, Editors or Members of the Editorial Board of the International Journal of Hydromechatronics (IJHM):
Login with your Inderscience username and password:

Username:        Password:          Forgotten your password?

Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.

If you still need assistance, please email subs@inderscience.com